I’d like to see tear downs of TGDI engines doing extended oil changes with Amsoil to prove their point of 15000 miles on TGDI engines. I searched Amsoil reviews on web site, internet, nothing.
I think it's the same type of engine. I don't know the OCI so it may not be that impressive.
Very valid points. To unleash 10k HP in seconds and not blow up a rear diff. Imagine that instant twist of torque.Sounds like might have been an improper balance of seal swell. FWIW, M1 0W-40 stopped the valve cover leak on my M5 too.
A lack of failure really isn't a preponderance of proof though. I used a variety of different gear oils in our Expedition diff, towed heavy with it while not being kind to it, never had a failure. I don't consider that a testament to the quality of those gear oils
I know the load of 10,000HP is nuts, but it's also only for 3-4 seconds. I'd think that again, the 24hr cars might be a better benchmark, due to the extended use, but OTR truck diffs are another thing to consider, given the load they are required to deal with, for long periods of time. That's why my current stock of gear oil is Delvac 1 75W-90, which was used at the heavy truck dealer my buddy worked at.
XL line. You can tell the XL line doesn't leave the engine quite as clean as SS.
230 F isn't that hot for motor oil.How long can amsoil 0w-20 signature series last when it’s constantly at 230 degrees American
Were these flat lander cars?
Amsoil 5w- 30 weight signature series oils are thinner than OE and extended life 5w-30
It’s in the original postI missed something or just chose not to read…Why was this engine apart?
If people are changing oil on the Sabbath they should be stoned or at least backhanded lol. 6 days on one day off it's been that way since the beginning of timeBut engines blow up when you don’t change the oil each Sunday after church![]()
Agreed, 230° f isnt hot for motor oil. It will definitely burn off most of the impurities in oil. My only contradiction to the statement posted above is if you have one that has forced induction and gasoline direct injection especially if it's with ethanol-based fuel. If it's not getting up to temperature which can take sometimes 20 miles or more of driving, fuel can break oil down and usually the lower the weight the more its evident. During the 5W-20 and 5W-30 arguments, I would rather have the ladder thin down to a 5W-20 then begin with a 5W20 and see where it goes230 F isn't that hot for motor oil.