USP

I'm not talking about octane, just the brand (ie. SHell, mobile, sunoco, etc.)
I've been using Shell V-power (93 oct) for about 6 months now. Yesterday I decided to fill up with Hess (also 93 octane) and right away felt a difference. The car was pulling a little better and the throttle seemed a lot smother for some reason. It literally felt like the car was given a boost in HP. Am I going insane? Has the cold weather finally gotten to me? or has anyone else experienced this phenomenon?

Mateoloco

I've always done citgo 93 or exonn 93 and never felt a difference, but who knows

USP

I doubt its the weather cause its been cold here for a while and it never felt this good.

GDawgA4

each gas station uses their own additives...so it could have been that

Bob Petruska

Yes, Texaco Prem - strong pull, rougher. Amoco Prem = weak pull, smoother.

T-dot B6

i think shell puts more lead in their fuel than others. but i could be wrong

jwj

Some stations fuel has excess water or other contents in storage tanks. Fresh gas will make your car run better too.
Have you added any fuel injector cleaner in your car? Detergents in gas can help car run better too if injectors are a little clogged.

koolaid

More lead in the unleaded fuel?