In article <dbumo4-kof.ln1@sede.helps.com>,
James D Howard <jdhoward@helps.com> wrote:

> I always use the lowest
> priced grade of gasoline.

Which does NOT promise you the lowest COST of gasoline.

Do you use a name brand, or do you use a grocery store or equivalent
no-name brand?

Start with a clean engine (use Techron for a couple of tanks), then use
a name brand top tier gas like Shell for a few tanks
(http://www.toptiergas.com). See what your actual cost per mile is.
Then go back to your normal fuel, and do the same calculation.

I've discovered that around here, although Shell is a few pennies more
per gallon, it's cheaper per mile to operate.