And, according to brother in law who's worked for a refining company for 40
years, the cleaning additives are now about the same, high and low octane.

Mike

> From: Paul Mayfield <paulmayfield@EARTHLINK.NET>
> Reply-To: Paul Mayfield <paulmayfield@EARTHLINK.NET>
> Date: Fri, 28 Dec 2001 19:47:43 +0000
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: higher octane needs
>
> Please correct me if any of this is untrue/incorrect!
>
> Bentley states on the back cover:
> -----------------------------
> Gasoline octane requirement
> US Cost of Living rating (CLC)...87
> CLC rating method. (RON+MON)/2 = 87
> MON = Motor Octane Number
> RON = Research Octane Number
> -----------------------------
> As far as Vanagon engines are concerned,
> regular 87 octane gas has more energy than high octane
> gas and produces more power -in a stock engine-
> because it is not diluted with additives that produce
> much less energy than raw gas.
>
> The only difference between High octane and Regular
> are additives: anti-knock and cleaning agents.
>
> As far as I know (and I may be wrong on this) Vanagon
> engines with digifant do not have the capability to make
> use of high octane gas. I've heard some high performance
> high compression engines have preignition sensors
> that adjust to lower power levels when 87 octane is used.
> (porsche,corvette?)
>
> I have a friend who owns a Chevron station.
> He has a stable of very expensive collector cars- all
> paid for with profits from overpriced premium gas.
> Suckers, he calls em.  30 cents a gallon suckers.
>
> Flamesuit on.
>
> =========================================
>