Does anyone know what the fuck they're talking about?? All I want is better fuel mileage....I've changed my spark plugs, fuel filter, air filter had the vacuum system checked, changed my tire pressure....and then FINALLY....someone suggests lower octane fuel, and it works!!! A huge improvement in mileage!!!
BUT THEN I'm told I shouldn't be running regular gas in my car, that it's going to clog up my CAT-verter. They suggest removing it. I call around to arrange that, THEN I'm told that my O2 sensor will start throwing codes if I take out the Cat-verter.
Why can't I run 87 in my car?? The tag inside the fuel door says I can....why are Volkswagen service people telling me I can't run 87 octane in my car when the Volkswagen people who BUILT THE FUCKING CAR say I can?!?!?