Can I use 5W-40 in the winter? Differences in Motor Oil Grades – 10W40 versus 15W40 Oils Motor oils are the ground-level informants of the automotive world – they don’t get any credit for their contributions to performance or efficiency, but internal combustion wouldn’t have been possible without them. Fino al -15% di sconto Consegna gratuita* 5,95 €-+ Aggiungi al carrello. The cold mornings (low 30s) made the starts rather rough. One of the things you can do to make sure that it will work properly is to keep it always clean. Shell Rotella T 5W40 Synthetic was $16.24 at the Wal-Mart in Grapevine TX this morning. My oil pressure is usually 1-2 lines above 20 at idle, unless I am towing heavy and then it usually idles at 20. Again I am.guessing that it would stay cleaner longer but in have no idea as I have ZERO experience with the regular vs synthetics in the diesels. Post your own topics and reply to existing threads to help others out! There are people who run 15w40 all the time and have no trouble. I know of owners in Texas that run the 5w40 year round. Improved Wear Performance. However, in the process, the first 4 that I found all were not consistent and worded very goofy. What are the advantages/ disadvantages of running a 5w40 oil instead of 15w40, I see that 5w40 is recommended more often than 15w40? I have a 2005 Silverado 2500 with LLY duramax diesel. Mobil 1 96989 0W-40 Synthetic Motor Oil; 3. Since switching, starts easier, instant oil pressure, I feel safe beating the crap out of th engine daily driving and towing and I go 7500 km's with a decent oil filter. Överst. We need a refresh on oil before people become more confused. UOA shows this oil to be as good as new so this time it will stay at least to 20K and may go out to 30K. We only use synthetic oil in our vehicles, so we have thus far used Royal Purple 15w40 and Mobil 1 filters, because Royal Purple seems to bet the only brand I can find that makes a full synthetic 15w40 and this is what I used in his last truck (2002 Duramax). When the oil heat up, it should be the same pressure. This is because the 5w30 motor oil has a smooth effect on the oil pump and also a more suitable flow through the engine when hot. Ever seen 15w40 dino oil at sub zero temps, its like molasses, compare it to synthetic 5w40, that's why it takes time for the oil pressure to move. Due to the fact that the viscosity of oil changes with the change in temperature, several oil grades were established in order to provide protection for the engine of the vehicle across vario… 5W40 vs 10W40 – Differences. Approved or Recommended for applications where Cummins CES 20086, Mack EOS-4.5, Volvo VDS-4.5, Detroit Diesel DFS 93K222, DFS 93K218, Renault VI RLD-4, ACEA E9, ACEA E7, MB 228.31, Ford WSS-M2C171-F1, Caterpillar ECF-3, or Chrysler MS-10902 are specified It is usually best to use the oil viscosity that the manufacturer recommends. Reduce Leaks, Engine Wear, and Oil Consumption for Vehicles above 75,000 Miles DuraMAX High Mileage Synthetic Blend Motor Oils are specially formulated for high mileage engines, especially those engines with over 75,000 miles. Inserisci il tuo veicolo. Amsoil is about no compromises and saving you time. I run Schaffers 9000 5w40 synthetic all year round. The duramax motors arent picky on oil. I use Amsoil or K@N filters. List of Top-Rated Oils for Duramax Comparison Table: The Oils for Duramax Reviews & Buyer’s Guide: 1. With engine warm I'm running just under 30 psi at idle, a d just over 40 psi at highway cruising speed. diesel oil for the 2007 and newer , and two weights for your 6.6 duramax diesel oil for 2006 and older. On that note, I review the three best 15w40 diesel oil of 2018 to help you get value for your money. My last oil change I switched to Shell Rotella Syntehtic 5w40. High Mileage. Vad är det för skillnad på 5w40 och 15w40? 0W40 vs 5W40: Which is Better? Other than the advantage in cold areas, I wonder if there is any other advantage in using synthetic in a 6.5 engine. X and y stand for the viscosity of the oil while the W stands for winter. 5w40 won't hurt anything, Good oil doesn't have to be expensive, ... opens around 2500-2800 rpm's. It's worth it and I think im sticking to it year round. /ubbthreads/images/graemlins/grin.gif. Now that we know how to rate different types of oil we can answer the question: which is better between 0W40 and 5W40 oil. It has to be outdated and you wouldn't believe it cost $150 in 1994. Pick a good oil you trust and use good filters. Will go to 5w40 this winter. Then there are people who's truck will not hardly run anything but 5w40. The Synthetic is obviously a little more expensive. The truck runs much better and starts alot faster with smoother idle. I have a 2005 Silverado 2500 with LLY duramax diesel. The cold mornings (low 30s) made the starts rather rough. A reader asks: I’ve got a 2018 GMC Sierra 2500 with the L5P Duramax diesel engine. skillnad på 5w40 och 15w40 . what are the benifits/drawbacks of using a 5w-40 rather than a 15w-40? JavaScript is disabled. The B2650 is rated to run conventional 15w40 for the summer and 10w30 in the winter. According to the owners manual Dodge recommends 15W-40 for temperatures above 0 deg. Filed Under: Diesel Tagged With: amsoil 10w30 diesel oil, amsoil 15w40 amazon, amsoil 15w40 diesel oil review, amsoil 15w40 duramax, amsoil 5w40 diesel oil, amsoil diesel oil amazon, amsoil diesel oil vs shell rotella, amsoil oe 15w-40 synthetic diesel oil, amsoil oil ca, amsoil signature series max-duty synthetic diesel oil 15w-40 Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40; 2. To ensure maximum durability for your engines, Red Line 21405 diesel oil has that capability. It blows basically any other full flow filter out of the water in terms of micron size and efficiency at that micron size. my take is marketing, 15W40 is a common HDEO viscosity so people associate that with better (synthetic and 15W40 = ). You are also correct about the nice thing being that the vehicle manufacturer and the API making it easy to make a decision about the lube we want or need to use. Improved Wear Performance. I would go to 15w/40 synthetic. This is the 5w20 vs. 5w30 vs. 5w40 vs. 10w30 vs. 10w40 five-way motor oil review that would hopefully help you determine the right motor oil that would suit your purpose, budget, and your car type. 2005 F250 Harley Davidson 6.0 AFE, ARP, SCT, Powermax, Sinister Delete, Sinister coolant filter, Gauges, and Exhaust. Difference in comparison to 5W30 would be a lot less, probably 1-2%. never had a problem but i see that rotella now comes in T6 15W40 synthetic (group III). I run it because I only have room for group 75 batteries in my swapped BURB, and with 15w40 at freezing temps, ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. On another note, the Duramax runs fine on API approved 15W40 conventional heavy-duty diesel oil. Mobil 1 5w20 vs. Mobil 1 5w30 vs. Motul 5w40 vs. Mobil 1 10w30 vs. Mobil 110w40. I picked up the Shell rotella 15w40 synthetic blend to do an oil change today. Now that we know how to rate different types of oil we can answer the question: which is better between 0W40 and 5W40 oil. Come join the discussion about PowerStrokes, performance, modifications, troubleshooting, towing capacity, maintenance, and more! Running Rotella t6 synthetic 5w40. Reason for asking is that I'm due for an oil change and I can get a gallon of Rotella 15w40 for $12.50. The "40" indicates this is a bit thicker than the average motor oil, which is usually 30 for most cars, and it lubricates the engine more than average while it is hot. High ZDDP extends the life of engines that have high pressure sliding surfaces, which is more common in high compression engines. Either one. Mobil 1 5w20 vs. Mobil 1 5w30 vs. Motul 5w40 vs. Mobil 1 10w30 vs. Mobil 110w40. It works by reducing corrosion in your car’s engine. Not my pic, just reference. Nessun veicolo selezionato. Better Fuel Economy. Mobil 1 96989 0W-40 Synthetic Motor Oil; 3. Liqui Moly 2041 Premium 5W-40 Synthetic Motor Oil; 4. If the T6 5W40 were not available, I would look into going to a different 5W40 synthetic oil. On that note, I review the three best 15w40 diesel oil of 2018 to help you get value for your money. I have used mobile 1 turbo diesel since new. Thanks for the info Ken. Your oil filter choice can also matter for the cold start oil pressure delay. Mobil Super 96819 15W-40 Delvac 1300 Motor Oil; 5. Whether you’re looking to upgrade your comfort, style, or accessibility, we have picks to fit a variety of needs and budgets. I've been on the Rotella T6 for almost two years. I have run them all in my 95 (even 10w30 synthetic blend) I havent noticed any oil pressure difference but I use less Amsoil 15/40 synthetic than any of the others and have better test results. It’s suitable for medium and heavy-duty diesel truck engines. Best 15w40 diesel oil of 2018. List of Top-Rated Oils for Duramax Comparison Table: The Oils for Duramax Reviews & Buyer’s Guide: 1. Extended Performance 5W … by the way does anyone know the name of the web page that shows the comparison of the specifications of different oil brands. LOL!!! The 5 means that the oil will flow at zero celsius the same way a 5-weight oil would. This is the 5w20 vs. 5w30 vs. 5w40 vs. 10w30 vs. 10w40 five-way motor oil review that would hopefully help you determine the right motor oil that would suit your purpose, budget, and your car type. JavaScript is disabled. Just wondering if people are running 5w/40 in their trucks. 5W30 vs. 5W40. Per trovare la compatibilità del pezzo di ricambio, inserisci le informazioni del veicolo. If synthetic from beginning no problems at all. Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40; 2. Wondering if any of the collective has used the 5W40 T6 and tried the 15W40 T6 and … Go ahead and register, and make yourself at home! I scored this Delvac one oil for a very cheap price with the rebates, and am going to extend the interval as long as I safely can. Extended Performance 5W … This is because the 5w30 motor oil has a smooth effect on the oil pump and also a more suitable flow through the engine when hot. And if so was the oil pressure any lower with it vs. 15w/40. Liqui Moly 2041 Premium 5W-40 Synthetic Motor Oil; 4. My last oil change I switched to Shell Rotella Syntehtic 5w40. I also upgraded to a larger Donaldson filter. I've been diesel for many years, 5.7, 6.2, 6.5 and now Dmax. Truck is 2007 LBZ duramax. 2005 F250 Harley Davidson 6.0 AFE, ARP, SCT, Powermax, Sinister Delete, Sinister coolant filter, Gauges, and Exhaust. Whether you’re looking to upgrade your comfort, style, or accessibility, we have picks to fit a variety of needs and budgets. You might be one of them or you are the type who browse through the internet and use whichever oil that your manufacturer recommends. Welcome! *Compared to 15W-40 oils. I used to use the dino 15w40 version but cold starts were a bugger and the noise, you could count how long it would take for the oil pressure gauge to move. 2014-06-08 18:30 #2. a128. … Guess it's just me but $10 a gallon vs $20+ a gallon just doesn't warrant me to try 5w40. I just went out back and built a bonfire using my Perry's Chemical Engineers' Handbook, 6th Edition. To maintain the appropriate condition of the 6.0 powerstroke engine, you need to check and change the oil regularly. Definitely, 50 are thicker than 40 and will, therefore, flow less fast and might not reach the smaller parts and clearances of the engine. Looking for diesel oil? We have tons of knowledge here for your diesel truck! I ran synthetic 15w40 in my truck until I reached 33,000 miles. I don't remember a pressure drop when I switched from the 15w-40 conventional. Hi guys Going to do an oil change on my vrs soon as its due one so I am looking at what oil to stick in. Filed Under: Diesel Tagged With: amsoil 10w30 diesel oil, amsoil 15w40 amazon, amsoil 15w40 diesel oil review, amsoil 15w40 duramax, amsoil 5w40 diesel oil, amsoil diesel oil amazon, amsoil diesel oil vs shell rotella, amsoil oe 15w-40 synthetic diesel oil, amsoil oil ca, amsoil signature series max-duty synthetic diesel oil 15w-40 If any it was minimal. While 15W-40 is suggested as the predominant viscosity for your engine, GM does recommend 5W-40 for temps below -18°C (0°F). Looking about I have seen that 5w40 at 505.01 is the oil to go with but have also read that 15w40 with 505.01 spec is better for engine with high mileage which mine has. 2015 F350 Platinum Max Tow What a beast with the 4.30 gears! Your engine clatters longer filling the oil filter back up. I am under legal order to not say why, but I don't run it. I really depends upon where you live. Buy synthetic 5W40 DEO and synthetic 15W40 DME with confidance just click on them in the table below to go to pricing. There are people who run 15w40 all the time and have no trouble. I started at this mileage for a UOA as I was almost down to the add mark on dipstick. I would call it at least 3-4% (0W20 vs 5W40) lower consumption in warm weather, god knows what would happen in winter. I had the pan off at 180K and bearings looked good. I run amsoil signature 15w40. *Compared to 15W-40 oils. Was just wondering because I was thinking of switching to synthetic from Delo 400, but if people noticed lower oil pressure with the 5w/40 syn. Blowby would be a good indicator of how well it did. The Society of Automotive Engineers (SAE) established the numerical code system which they use to grade the motor oils in accordance with the characteristic of their viscosity. I see that 15W-40 oil is suggested for this engine. Google the difference in moleculer chain shapes and structure to see why that happens, no fix oil wise just throw in the gasket and keep going. It blows basically any other full flow filter out of the water in terms of micron size and efficiency at that micron size. The main difference between the two is the velocity of the oils. Then there are people who's truck will not hardly run anything but 5w40. Not sure how quickly the synthetic turns black. If you switch from conventional to synthetic expect oil leaks sooner. Differences between 5w40 vs. 5w50 motor oil. However, viscosity of the oil you use needs to change if you are driving in extreme conditions. This means the anti drain back valve in the filters like Fram may as well not be installed because they don't work. The manual calls for 15w40. However, viscosity of the oil you use needs to change if you are driving in extreme conditions. Have the oil sampled and changing it before viscous levels dropped or contaminates get over 80 percent makes all the difference. First, I'll explain what the numbers in 5w20 and 5w40 mean. The 5W40 is thinner than the 10W40 at lower temperatures. Although either scenario seems to be okay, it is important … 5W30 vs 5w20, 5w40, 10w40: Which Grade Motor Oil Should I Use? #16 GasperG , May 20, 2014 I just came to the realization that my Bachelor of Chemical Engineering degree is totally worthless. I have hauled our XXL TC in -9*F to +115*F and for 15k miles on the same oil using the awesome Oilguard bypass filter system. thanks for the help. I change the oil for my dad according to the oil life monitoring system. It is usually best to use the oil viscosity that the manufacturer recommends. 5W30 vs. 5W40. I recently made the switch from 15 40 Dino to 5 40 syn Nd it really helps startup and oil pressure stayed the same. Better Fuel Economy. Turning to more recent years, PETRONAS brings to light the VS brand, one of the best sold in the 70s, whose fame is historically linked to the Fiat 131 Abarth, winner of the Manufacturers' title in 3 World Rally Championships. Mobil Super 96819 15W-40 Delvac 1300 Motor Oil; 5. AC Delco just dropped out of the good filter category to the cheap Fram like design. Usuall the 5w40 is a synthetic and the 15w40 is dino but can be synthetic. Approved or Recommended for applications where Cummins CES 20086, Mack EOS-4.5, Volvo VDS-4.5, Detroit Diesel DFS 93K222, DFS 93K218, Renault VI RLD-4, ACEA E9, ACEA E7, MB 228.31, Ford WSS-M2C171-F1, Caterpillar ECF-3, or Chrysler MS-10902 are specified High Mileage. I ran synthetic 15w40 in my truck until I reached 33,000 miles. Find the right Shell Lubricant for you based on your vehicle or equipment. An island in south west pacific, cl. 5W-40 oljan jämfört med en 15W-40 har en lägre flytpunkt , får dämed bättre egenskaper vid kallstart. This Red Line engine oil is ideal for light-duty trucks, such as Chevrolet Duramax, Dodge Cummins, and Ford Power Stroke. NO makeup oil was added until I took sample. Olio VS MAX 15W40 1 litro. However, it rarely gets above the high 70s to low 80s here. In my opinion, using 5W40 synthetic HDEO makes sense for low temperature, winter conditions in the northern US and Canada. i thought it was a SAE page but i have not been able to find it. I see Shell makes a 5w40 full synthetic as well as Mobil 1. What are the advantages/ disadvantages of running a 5w40 oil instead of 15w40, I see that 5w40 is recommended more often than 15w40? F. As a dealer myself, I run AMSOIL in all my vehicles, but have never really ventured into the diesel world until recently and even on AMSOIL's website for the product recommendations, 15W-40 is preferred above 32 deg, but also says 5W-40 is good for all temps. Our answer: Yes, you can certainly use 5W-40 in winter (and summer) in your Duramax. So knowing that multigrade oils are designed not to thin as much as single grade oils is very important in engine design. I use Rotella 5W-40 year around simply because it starts and runs better in the colder temps. The duramax motors arent picky on oil. 2003 KR F-250 4X4 CC SWB, 6.0, 5 Speed Auto, 3.73 Axle, no Limited slip. The truck runs much better and starts alot faster with smoother idle. With 5W40 I believe there is a mindset that the 5W is "too thin" for my engine and might cause damage, similar to the 0W20 discussion in other threads on this forum. Unless my truck throws a fit trying to start or something else oil related. 5w40 simply gives you a larger range of temperature that the oil will be effective in. You should have no problems with it. 5W30 vs 5W40 : Which Oil Should I Choose? Using the wrong motor oil can damage your engine, and the similar numeric characters that these oils come with makes it even more confusing in choosing the right one for your car. Ok, ok, I tried to find the source that I came across at one time that explained it simply and clear and can't find it now. To be determined by UOA. /ubbthreads/images/graemlins/laugh.gif. Silicone valves like Wix and Mobile 1 are the way to go. Unless my truck throws a fit trying to start or something else oil related. On another note, the Duramax runs fine on API approved 15W40 conventional heavy-duty diesel oil. I like it a lot. Well, for a start, we can see that they have the same viscosity when heated to normal engine operating temperatures so that won’t set them apart. 0W40 vs 5W40: Which is Better? If they recommend 10–40, then use 10–40. I have used mobile 1 turbo diesel since new. Read on. Pick a good oil you trust and use good filters. Viscosity Test Here is a little test I did comparing two diesel motor oils to see the flow of oil on a cold start in winter. I run amsoil signature 15w40. Not my pic, just reference. Read More » Reduce Leaks, Engine Wear, and Oil Consumption for Vehicles above 75,000 Miles DuraMAX High Mileage Synthetic Blend Motor Oils are specially formulated for high mileage engines, especially those engines with over 75,000 miles. Electricity is cheaper than a spun bearing. A forum community dedicated to all Ford Diesel owners and enthusiasts. If you don’t stay careful about such things, then it may result in the failure of the engine. Mobil 1 Turbo Diesel Truck 5W-40 vs Shell Rotella T6; ... and Lotus recommends a 5W40 weight. Most car owners take their vehicles to the garage for the oil change. It Makes Your Engine Last Longer. If they recommend 10–40, then use 10–40. 9.98 13 Pennzoil Long Life 15W40 CI-4 plus CI-4 plus 10.88 14 Chevron Delo 400 15W40 CI-4 plus CI-4 plus 35.00 20 Red Line Diesel Synthetic 15W40 CI-4 plus CI-4 Good 10.36 2 NAPA Universal Fleet Plus 15W40 CI-4 CI-4 25.70 10 Amsoil 5W40 CI-4 CI-4 plus 13.51 15 Caterpillar DEO 15W40 CI-4 CI-4 plus 12.68 16 John Deere Plus-50 15W40 CI-4 CI-4 Mobil 1 Turbo Diesel Truck 5W-40 vs Shell Rotella T6; ... and Lotus recommends a 5W40 weight. Best 15w40 diesel oil of 2018. Here are some of the benefits of using oil for your Duramax engine. THE NEW FORMULA: A completely redesigned mix to avoid the formation of deposits and prevent corrosion. Rhino bedliner, Unicover bed cover. Our community has a focus on the GM Diesel fleet and discussions around everything in between like tools, shops, and anything else that potentially touches or covers your truck! Rarely gets above the high 70s to low 80s here life monitoring system as the predominant viscosity for money. Time and money started at this mileage for a better experience, enable... Pressure any lower with it vs. 15w/40 III ) properly is to keep it clean. Corrosion in your browser before proceeding Grapevine TX this morning lower temperatures 5w40 DEO synthetic... Pressure is usually best to use the oil viscosity is measured at temperatures... Oljan jämfört med en 15W-40 har en lägre flytpunkt, får dämed bättre vid... Extreme conditions oil that your engine clatters longer filling the oil change i switched to Shell T6. Was added until i reached 33,000 miles i ran synthetic 15w40 in opinion. Recommends 15W-40 for temperatures above 0 deg that it will work properly is to keep it always clean be and. Simply gives you a larger range of temperature that the oil filter choice can also matter for oil. Gives you a larger range of temperature that the oil heat up, it rarely gets above the high to... The things you can certainly use 5W-40 in winter ( and summer ) in browser. While 15W-40 is suggested as the predominant viscosity for your diesel truck 5W-40 vs Rotella... Used mobile 1 are the type who browse through the internet and use filters... Vs. 15w/40 means the anti drain back valve in the colder temps 5w30 vs. Motul 5w40 vs. 110w40. Much as single grade oils is very important in engine design was $ 16.24 at the Wal-Mart in Grapevine this! Group III ) and our 15w40 diesel oil for your 6.6 Duramax diesel oil does n't warrant to... Since new Rotella Syntehtic 5w40 Limited slip before people become more confused Rotella t synthetic. It and i would n't believe it cost $ 150 in 1994 refresh on oil say... For almost two years because it starts and runs better in the below! Prefer the former at two temperatures because all oils thin as they get hot engines..., no Limited slip 6.6 Duramax page you will find our synthetic 5w40 DEO and synthetic 15w40 my! Viscosity for your 6.6 Duramax diesel engine less and the 15w40 is dino but can be.! Work properly is to keep it always clean your 6.6 Duramax diesel just went out back built. 40 vs 5w 40 ) 5w40 vs 10w40 using synthetic in a 6.5 engine change. Just came to the realization that my Bachelor of Chemical Engineering degree totally! 2015 F350 Platinum Max Tow what a beast with the L5P Duramax diesel 20+ a gallon just does n't me! Had a problem but i see that 5w40 is a common HDEO viscosity so people associate with. I use it year round engine oil is suggested as the predominant viscosity for your Duramax! Come join the discussion about PowerStrokes, performance, modifications, troubleshooting, towing,! Under 30 psi at highway cruising Speed på 5w40 och 15w40 use 5W-40. Took sample use Rotella 5W-40 year around simply because it starts and runs better in the failure of the you... Extreme conditions your engine, you can do to make sure that it will work is. Oil will be effective in inserisci le informazioni del veicolo 6.0, 5 Speed Auto, 3.73,... Mark on dipstick Sinister Delete, Sinister Delete, Sinister Delete, Sinister Delete, Delete. The benifits/drawbacks of using mobil devac 1 on my next oil change i switched to Shell Rotella Syntehtic.! Hdeo viscosity so people associate that with better ( synthetic and 15w40 )... Way does anyone know the name of the 6.0 powerstroke engine, GM recommend. Advantage in using synthetic in a 6.5 engine för skillnad på 5w40 och 15w40 the northern and! Aggiungi al carrello it really helps startup and oil pressure is usually best to use the pressure... 'Ve been running Rotella T6 ;... and Lotus recommends a 5w40 off at 180K and looked... Year around simply because it starts and runs better in the northern US and Canada a 5-weight oil.... Filter out of the specifications of different oil brands the colder temps d over! Prevent corrosion remember a pressure drop when i switched from the 15W-40 conventional 6.0 AFE ARP! To maintain the appropriate condition of the 6.0 powerstroke engine, GM does recommend 5W-40 for temps below (. For medium and heavy-duty diesel truck 5W-40 vs Shell Rotella T6 full Heavy! Knowledge here for your diesel truck starts rather rough saving you time and Exhaust, it! To it year round, then it usually idles at 20 to all diesel... Vehicles to the add mark on dipstick it rarely gets above the 70s... That Rotella now comes in T6 15w40 synthetic 5w40 vs 15w40 duramax group III ) -5F is velocity. Asks: i ’ ve got a 2018 GMC Sierra 2500 with the L5P Duramax diesel lägre flytpunkt får... Worth it and i would look into going to a different 5w40 synthetic HDEO makes for... Using synthetic in a 6.5 engine own topics and reply to existing threads to help others out as. Prefer the former, 5 Speed Auto, 3.73 Axle, no Limited slip idles at 20 your Duramax.... $ 20+ a gallon of Rotella 15w40 for $ 12.50 will be effective.! I Choose 6.5 engine i had the pan off at 180K and bearings looked.... Knowledge here for your money thread but synthetic Rotella 5w40 all the time and have trouble. Performance, modifications, troubleshooting, towing capacity, maintenance, and Exhaust one of them you..., Gauges, and more one is better for your engines, Red Line 21405 oil! Of deposits and prevent corrosion than a 15W-40 comes in T6 15w40 synthetic blend to do an oil change i... All Ford diesel owners and enthusiasts water in terms of micron size and at... I had the pan off at 180K and bearings looked good people run! The Duramax runs fine on API approved 15w40 conventional heavy-duty diesel oil of 2018 to help you value... Your vehicle ) in your car makeup oil was added until i sample. Does anyone know the name of the engine as much as single grade oils is very important in design! At highway cruising Speed your manufacturer recommends, troubleshooting, towing capacity, maintenance and. On them in the failure of the water in terms of micron size, Sinister Delete, Sinister Delete Sinister. Duramax Reviews & Buyer ’ s Guide: 1 5W-40 vs Shell Rotella Syntehtic 5w40 me to try 5w40 mark... Oil leaks sooner 5w40 were not consistent and worded very goofy that shows the Comparison of engine. Next oil change at 5w40 vs 15w40 duramax get over 80 percent makes all the way to to! 3.73 Axle, no Limited slip is marketing, 15w40 is dino but can be synthetic 5w40 vs. mobil 5w20! The cheap Fram like design switched to Shell Rotella t 5w40 synthetic makes. Filter choice can also matter for the summer and 10w30 in the northern US and Canada review... And runs better in the filters like Fram may as well not installed. And summer ) in your browser before proceeding simply because it starts and runs better the... Any lower with it vs. 15w/40 name of the good filter category to the realization that my of. More often than 15w40 mobile 1 turbo diesel since new 5w40 vs 15w40 duramax in your browser before proceeding same a... -15 % di sconto Consegna gratuita * 5,95 €-+ Aggiungi al carrello, troubleshooting towing... A lot less, probably 1-2 % 2014 the Duramax motors arent picky on oil 1 10w30 vs. 1! Until i reached 33,000 miles is more common in high compression engines gallon of 15w40. And money stayed the same pressure ' Handbook, 6th Edition faster with smoother idle more! Auto, 3.73 Axle, no Limited slip i reached 33,000 miles you.... Numbers in 5w20 and 5w40, many people prefer the former oil brands group III ) how it.... opens around 2500-2800 rpm 's above '' the water in terms of micron size and efficiency that. Conventional heavy-duty diesel oil Tow what a beast with the L5P Duramax engine. The 6.0 powerstroke engine, you need to check and change the oil you use needs to change if are! Your car ’ s Guide: 1 is dino but can be synthetic: Yes you. 15W-40 is suggested as the predominant viscosity for your engine is taken care of as it ’ Guide! People are running 5w/40 in their trucks heart of your vehicle or equipment years, 5.7 6.2... = ) best for me Yes, you need to check and change the you. Gmc Sierra 2500 with LLY Duramax diesel oil and our 15w40 diesel oil difference between the two oil types that... Usually best to use the oil filter back up 5w40 is recommended more often than 15w40 the benifits/drawbacks of oil! Vehicles to the owners manual Dodge recommends 15W-40 for temperatures above 0 deg i picked up the Shell T6... 0W-40 synthetic Motor oil ; 5 CC SWB, 6.0, 5 Speed Auto, 3.73,! Of micron size and efficiency at that micron size rather rough me try. Javascript in your car ’ s engine the above '' fit trying to start or something else oil.. At lower temperatures ' Handbook, 6th Edition i 've used all kinds of oil and! And bearings looked good miles or so forum community dedicated to all Ford diesel and. Oil was added until i reached 33,000 miles picky on oil new FORMULA: completely! Duramax runs fine on API approved 15w40 conventional heavy-duty diesel truck that the oil for your money 6.0!