Brand of gas you're using

[BUMBLE B]

Originally Posted by jokerswild

Maybe they do, but many places have different percentages of ethanol, which (IMHO) is HORRIBLE, and I want nothing to do with it.

Here in southern CA, Arco is probably one of the worst, there's a noticable drop in power and MPG in my Tacoma. Arco gas won't be touching my Camaro when it arrives. I'll be sticking to Shell, Chevron, or anyone else on that toptiergas list that was posted above.

Yeah, but they add the additives between the pipeline infrastructure and the tanker trunk. It's the additives that make each brand different ( performance octane,oxygenation, detergent, storage additives, etc.)

[kjd15]

Originally Posted by BUMBLE B

I have noticed in my owner's manual that they refer me to a website to see if my gas has an additive that they claim is bad for the engine. G.M. recommends gasoline without the additive that supposedly will build-up inside the heads. Shell premium is one of many approved brands.

Is that the top tier fuel they talk about in the owner's manual? It does say Shell in my area, but I don't see any "top tier" markings on the pumps at the Shell stations I go to.

[egad09]

Chevron 93