Oil viscosity - more difference than I would have thought

[imzjustplayin]

Originally Posted by bowtieguy

here's an interesting read...http://www.calsci.com/motorcycleinfo/Oils1.html

Jay may find it helpful as it deals mainly w/ motorcycle lube. anyway this guy claims 0w20 in a heavy duty app(like hard driven motorcycles) is a no-no. he also dismisses the study(you know how i feel about them and their often slanted approach ) of cab engines run on conventional oil.

do we all drive hard enough to warrant extra protection? likely not most, but hey, it's cheap insurance.

I wouldn't call it insurance if you're using a heavier weight oil than specified since that could easily void the warranty if they ever figured it out. If you're driving your vehicle "hard" to begin with, then this is totally irrelevant since you should not only be changing your oil more frequently but also should expect to rebuild the engine much sooner.

[bowtieguy]

um, perhaps you've heard of warmer climates and high humidity. we've have had near 100*F temps all summer in florida. overheating can happen to anyone, anytime. i WANT that insurance. besides the moot point of $$$ and time savings, as well as conservation has been exhausted.

here's a perhaps slanted source who recommends avoiding 0 and 5w20 oils even tho they sell it!...http://www.smartsynthetics.com/articles/5w20oil.htm and warranty loss? HOG WASH!