That is all BS. I have a Corvette C7 and I only use 92 because the highest octane number in US is 93 and most gas stations only carry 92 gas.
As long as the engine is not knocking, you are just fine.
The bottom line is your Toyota Corolla ain't gonna get Ferrari's performance even you put 98 gas.
I guess US is a third world country cos we don't have 95 or 98 gas. 作者: 中西文 時間: 2014-8-12 10:47:06