Better Gas Mileage using Shell Gas vs Chevron

[BYprodriver]

While I worked at both Shelby & Saleen during the EPA emissions certification process for new manufactured vehicles, 2 different emissions certification engineers were adamant about using nothing but Chevron Supreme in test cars. That's all I use & it's usually the most expensive option. I just paid $4.12 per gal at my local station.

[Porsche9]

Originally Posted by BYprodriver

I just paid $4.12 per gal at my local station.

$4.12 per gallon! What's in that gas that it's $4.12 a gallon? The Chevron by my house is $2.83 for super.

[leftfield6]

To the original poster's question, though, one tankful is not near enough of a sample size to determine any changes in fuel economy. To accurately gauge fuel economy, you need a large sample size.

For the argument about one brand of gas is better than another, I give you this.