some of the commercial stuff really works!!!!
 

I never believed a lot of commercials about special stuff you can add to your car to perform better.

However, now I have slightly different opinion. Recently I added an STP fuel injector cleaner, after that driving 20 miles roundtrip every day, my mileage increased from 240 (full tank, till the light comes on) to a 300 miles. That is some difference. I guess my injectors were kind of dirty, he he.

Nik

Fuel injector cleaner
 

I've always noticed a difference with it but that's too good to be true! Did you change your driving habits or gas during that tank?
Not so much difference with Fuel Injector cleaner on my SVX but then again I only put Brand name high octane in it (or at least that's what the pumps say) but with every other car I've used it in. I've also found that Valve Medic does wonders as well although I'd caution against using it often since it really isn't great for your cat convertors.

I haven't changed any of my driving habits at all. So I guess it should be the stuff that I added. I am driving 20 miles every day, roundtrip to college. Fill the tank with 91 ( I am not sure if the brand of gas station makes any difference)

That is my first time using it. So, I am not sure about the consequences of it, however thanks for advice, will consider.

nik