[Frank Lee]

Originally Posted by givemeslack

I take back what I said about "most cars and trucks" needing a change every 3k miles. That's just my two vehicles, according to the manual.

But, regardless, I think oil should be changed once a year, whatever the mileage.

I still stand by the Lucas fuel additive and every other oil change using an injector/complete fuel system cleaner, for performance, as well as fuel economy.

I do an "italian tune-up":

1. Pour the injector cleaner in the tank.
2. Fill the tank with gas.
3. Drive very, very fast on the highway.

In a motorcycle I'll use Sta-bil in the winter, when not in use. Gas with ethanol really does go bad, and absorbs moisture. The blue Sta-bil marine formula is the best.

What vehicles?