Originally Posted by BTLew81
Originally Posted by Bullwinkle007
You won't have issues running it at all. This low weight oil is only for mpg credits for cafe standards. They do not care about engine longevity they prefer you just buy a new one. Even a Toyota 0-16 engine, I would run 5/30. What manufacturer say in the owner's manual is we recommend. It does not say shall which means must,
Good point. Recommended not required, unlike VW, BMW, etc.
Either way, looks like Quaker state is still on the heavy end of the 30wt spectrum.
Even then it is the approval that is required, not the grade. Sometimes there isn't much choice but it's all dictated by the approval.