feelinjunky wrote on 02/27/12 at 18:42:45:Holy nuts, this isn't the 1960s. Oils are G status nowadays so use whatever you want.
The only way you can say one oil is better than another is if using a certain oil causes engine damage faster than another oil, which hasn't ever happened and won't happen.
Now we gots us a live one who has done picked up his rife and has done gone to shooting.
"if using a certain oil causes engine damage faster than another oil, which hasn't ever happened and won't happen."
I think 5w30 & 10w30 energy star car oils cause engine damage faster than you can say "slippy clutch" which has happened and will happen.Or did you mean "a certain oil" and "another oil" that are selected with both within some certain range of parameters?
Clarify what you meant a bit, while good ol' Bill searches for his Klotz motorcycle break in oil. I'll be helpful, and give you the written data to pick between using your very own favorite Castrol GTX as the example.
SAE 5W-30:
is a premium, super multi-grade that provides maximum cold weather engine protection and can help extend engine life. SAE 5W-30 exceeds API Service SM, SL, SJ and SH, as well as exceeding all the requirements of ILSAC GF-4/GF-3/GF-2 for PI Certified Gasoline Engine Oils and meets Energy Conserving Standards.
SAE 10W-30:
is a premium, super multi-grade that provides excellent fuel economy and can help extend engine life. SAE 10W-30 exceeds API Service SM, SL, SJ and SH as well as exceeding the requirements of ILSAC GF-4/GF-3/GF-2 for API Certified Gasoline Engine Oils and meets Energy Conserving Standards. Exceeds GM6094M.