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Date:         Fri, 11 Mar 2011 06:20:31 -0500
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: STP Gas Treatment
Comments: To: DW <dcwilton@GMAIL.COM>
In-Reply-To:  <AANLkTinY+D+vx6MEp8S_PdKyCBJqRZ0f8YWKQ7hbZtu5@mail.gmail.com>
Content-Type: text/plain; charset="US-ASCII"

That 91 octane rating on the sticker is not the same rating system at the pump. Pump 87 octane is fine unless you over advanced the ignition timing, modified the engine, or something else is wrong. With the price of fuel why waste another $.30 per gallon.

Dennis

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of DW Sent: Friday, March 11, 2011 1:21 AM To: vanagon@GERRY.VANAGON.COM Subject: Re: STP Gas Treatment

Dave:

I have looked for a good reason not to run premium gasoline, but I can't seem to find any detailed information. I have always gone by the sticker on my van that states something about a minimum octane rating of 91. Based on your post I did manage to find a website with an excellent database of gas stations selling ethanol free gasoline (http://pure-gas.org/). Can you expand on the reasons why my van will be/run/last better with a lower octane gasoline? The manual I have for my '91 Multivan specifically states that ethanol is a no-no, but I assumed that I couldn't buy anything but blended gas in WA.

Thanks,

DW

On Thu, Mar 10, 2011 at 8:32 AM, Dave Mcneely <mcneely4@cox.net> wrote:

> ---- PB <pbrattan@GMAIL.COM> wrote: > > Nothing's wrong with my Westy, but would like to know if STP gas > > treatment will increase mileage and enhance performance. > > Patti > > 90 Westy Automatic > > no. the best fuel for your vehicle is regular, unleaded, gasoline, > without alcohol if you can get it. STP (or any other in tank gas > treatment) is for the most part just expensive (very expensive) fuel. > > mcneely >


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