"Elmo P. Shagnasty" <elmop@nastydesigns.com> wrote:
> I can't speak for the nitrogenized gasoline, but I started using Shell
> several years ago, based on their cleaning claims. I discovered that
> whatever it was, Shell gas was cheaper to run than other fuels.
>
> I started with a few tanks of their Ultra, with extra cleaners, to get
> things clean (this was a 94 Lexus with 130K miles on it). Then I
> switched to their 87 octane, and ran nothing but that. I was getting
> better mileage than I did on other fuels, and even accounting for the
> fact that the Shell was a bit more expensive to buy, it was cheaper to
> run.

Hm, interesting. And I thought Chevron was the way to go.

> go figure. I think their claims are legit--but they were so even
> before
> claiming this "nitrogenized" fuel.

I hope it's not a kind of gimmick like those claims about magnets around
fuel lines. ;-)
I noticed though that Shell also uses up to 10% ethanol in its gas which
is said to reduce fuel efficiency, so it's even more puzzling how they
can achieve better overall milage than other main brands.
pj