Well, my '88 Grand Caravan just turned 390,000 miles and nothing has ever been done to the injectors. In fact, in my 10 years at the dealership, Chrysler had extremely little trouble with injectors on all models. Even injector cleaners added to the tank aren't needed if you buy quality gas. It has plenty of additives and detergents already. In this case, wait until you have a problem to fix something.
I've also never used any type of additive in any of my other 8 vehicles including three with injectors.
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Wednesday, July 18th, 2012 AT 4:37 AM