When i get older im going to buy a 1970 chevelle. i was just wonderin, what kind of gas do i have to fill it up with, regular super etc?
- If your car is really old -- we're talking 1970s or earlier -- you may need to use 89 octane or better, and you should listen for pre-ignition knock (which probably means your car needs a tune-up, not better gas). If your car was made since the late 1980s, use whatever fuel is recommended in the owner's manual. If the car runs poorly, that could be a sign that the fuel or ignition system needs cleaning or adjustment. It's best to spend money on having the engine tuned up rather than buying more expensive gas.
Source: About Autos