Originally Posted By: Dominic
I find it funny that we have TopTier fuels with 2x EPA detergent levels, ULSD, and a whole array of quality fuel injection cleaning products on our local autostore shelves... but that manufacturers simply do not recommend in any way to use them; much less how often!
I think one reason is that automakers are concerned about the perceived Total Cost of Ownership. If they did recommend fuel injector cleaners at regular intervals, it would be factored into the TCO figures.
Of course, fuel injector cleaner companies will say whatever they can to get you to buy their product, with or without merit.