Is there a difference between the gasoline octane you put in ur car ?
The US gas pump labeling laws state that the listed octane rating on the pump has to be the minimum octane level dispensed from that pump. So, yes, you could be getting the same high octane fuel out of all grades at the pump, but it is unlikely… and yes, the tanks do have separators. (I do suggest catching an episode of the History Channel’s program “Modern Marvels,” titled “Gasoline,” for more info.) BTW: I recommend reading the US Federal Trade Commission’s Facts for Consumers – “The Low-Down on High Octane Gasoline” http://www.ftc.gov/bcp/edu/pubs/consumer… You should use whatever grade/octane the owner’s manual recommends. If your car is experiencing engine knock (or pinging), then you should go up a grade in octane. (But if your car IS knocking, something may be wrong with it and it may need a tune-up!) Octane is a measure of the fuel’s ability to resist pre-detonation (or engine knock). Highe
