Originally Posted by BlueTSX05
we don't have any chevrons around here and very few shell or sunoco's. I usually just use the Valero gas and use 93, so far so good,
I agree with your observations about using non-branded gas and not finding any issues thus far. But my experience with using gasoline other than Chevron or Shell, is that the first couple of years may "appear" to not have any effect, but following continuous use, you will find that the engine is no longer running as smooth and gas mileage will be not as good as before. The latter is most likely due to the carbon deposits left to accumulate on the valves, injectors and combustion chamber. If the cleaners in the gas is not potent enough and is in insufficient concentration, the "gum" or residue left behind from burnt and unburnt gas will be left to accumulate.
A "cleaning burning" gasoline is by definition, one that "cleans" after itself.
Note: any gasoline will form deposits during the combustion process (the combustion process not being 100% efficient in itself).
Just because a gasoline product claims that it has detergents in it, does not necceasrily mean it can "clean" up the residue deposits.
Thus far, although I initially had my doubts about chevron's claim, I now strongly believe in using it in both my cars to keep it running efficiently 9together with regular oil changes of course).
Chevron Canada for some reason has stopped selling across the counter, Chevron Techron concentrate. Great stuff, if you have a dirty engine, one bottle will totally clean it out.