I use Sams 93 octane. It seeks to run fine and is the cheapest in town.

Back in the 70's before my dad died he drove a gas truck. He said it would amaze you haw many different ones of these stations use the same gas. Not sure any more.

 

sunoco 100 octane

 

I only use V-Power. I tried using Exxon after using V-Power consistently and my gas mileage on the interstate went from 29-30 to 25-26. I honestly didn't expect it to make that much of a difference but I guess so. When I first started using V-Power it burned really fast, after a while my gas mileage increased. I usually ranged about 300-320 before the gas light came on, now its about 320-340 and this is mostly city driving.

 

wow shell v-power makes that much difference huh?? maybe i should check it out

 

Here in New Jersey, A strange thing is happening...A Russian conglomerate called "Luk-Oil" has bought out a LOT of the independent gas stations, formerly owned by the towelheads. Soo...every mile or so, I see "Luk-Oil" gas stations

Surprised they didn't call it "KGB Gas-n-Go" or "Krazee Kremlin Gas" with the old USSR Symbol and Dolph Lundgren as the spokesperson..LOL

 

Towelheads?!

 

Yup...And they always get confused if you ask for $5 unleaded..."Fill it Up?"...."NO...$5 M*therf*kka!!!"

 

I always heard it was best to pick one brand and stick with it. They all offer similar performance, but the additives may not be compatible with each other. IOW, mixing one brand with another can have undesirable results - additives that react with each other and create sludge or gum up your injectors, etc.

 

Sunoco Ultra 94 octane..

 

Sunoco 94 octane best way to go! IT is 2.45 a gallon though.

 

Quick Trip on 121 Southwestern in Lewisville always the cheapest station in town and occasionally Exxon.

 

Conoco 93 octane

 

I've also been attempting to validate the idea of different gasoline "http://www.toptiergas.com/ . I've been buying only Chevron and Shell out here for the past 18 months. I've only got 10k miles on the Z, however, I am running cleaner in my pickup. My injectors don't need cleaning as often as they used to and my throttle body doesn't tend to stick anymore when hot due to build up (common problem on the earlier Silverados).

 

I use Citgo mostly. Its the cheapest consistently of what I consider the "Name brands" of gas.