Is there really any advantage to using high octane gas in your car or synthetic motor oil?
Incidentally, I’d like some kind of quantitative proof, not stupid answers like “Oh, I can FEEL a difference in the way the car performs” or other such marketing drivel. I know some cars specificly tell you to use them, but for those of us who drive non-performance cars, is there any advantage?
Has anyone done a study for example, where they measure extra mileage driven on higher octane gas (assuming it gives you better miles-per-gallon) versus what you pay for the stuff?
I live in California, land of high priced gas, so I’d like to know what’s a “best buy” for what you pay in the long run…