What is the best gasoline?

[dogbazinho]

I have a turbo but only use 89. Should I sale my car before 50K miles?

 

[vwg*]

Best gasoline depends on what type of engine you're running. For the most part, if you don't have a turbo, running anything but 87 is wasting money

It has less to do with the engine having a turbo than it does with what compression ratio your engine is running at. Typically turbo engines generally run at higher compression ratios, so they need a higher octane fuel. But naturally aspirated and supercharged engines sometimes need it as well. All octane rating is is a measurement of the fuel's resistance to detonation (relatively speaking). So higher compression engines need higher octane fuel to avoid things like engine knock, which you will get with running low octane fuel in a high compression engine.

 

[Clode]

Nothing lower than 93 for me

 

[New Jersey]

87 octane from Wawa. It's cheap and I drive a car with 148 hp so yeah.

Anything above 87 in an econobox and you might as well be throwing away those extra dollars.