Honda Car Forum

#1 (**permalink**) 29 Aug 2003, 06:12 am

Immeasurable differences? Not so. I’ve had increased gas mileage
with Shell on my old 88 Accord. Other stations don’t. Later I
found same advertisement in Popular Science magazine. New cars
probably no diff.

> We all know you like to find something with which you can
> disagree with in most every post, but thanks for reinforcing what
> I posted, that All of the gasoline's sold in an area are
> basically the SAME blend no matter which brand you choose to
> use. You just said so differently. The fact remains on any
> particular trip on a tank of gasoline any differences in fuel
> mileage is statistically immeasurable and that was his basic
> question.
>
>
>
> mike hunt
>
>
>
> George McDonald's wrote:
> >
> > On Tue, 26 Aug 2003 18:23:18 GMT, MikeHunt@lycos.com wrote:
> >
> > >All of the gasoline's sold in your area are basically the SAME
> > >blend no matter which brand you choose to use. Federal
> > >regulations set the mix for your area, as for all others in the
> > >US, based on altitude, ambient temperature among other
> > >parameters. Any difference in fuel mileage is statistically
> > >immeasurable even if commercials imply that it can be measured
> >
> > What utter rubbish - you know absolutely nothing about gasoline blending.
> > The regulations limit things like aromatic and in some places, olefin
> > content in general; they do not specify exactly which mix of refinery
> > streams can be used nor what the chemical make-up of those streams actually
> > is. Each refiner optimizes the blend of gasoline to maximize profit, while
> > conforming to the performance specs... and based on the streams available
> > from the crude content and post processing operations at an given refining
> > site.
> >
> > That said, there *is* some bartering between refiners where one or the
> > other does not have a presence in the form of a refinery or bulk plant,
> > usualy linked to a pipeline, in any given area where they market. In fact
> > I believe the final phase of the Equilon agreement has recently take place,
> > where Shell gives up rights to the Texaco brand name in the remaining major
> > outlets... East coast IIRC.
> >
> > There is also the fact that different refiners have different additive
> > packages and local climate and regulations often dictate quite different
> > blending ratios.
> >
> > Rgds, George Macdonald
> >
> > "Just because they're paranoid doesn't mean you're not psychotic" - Who, me??

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