Patti

        2 Sites to read ~ I think you may want to consider a new mechanic ~

www.TopTierGas.com

http://blog.modbargains.com/what-is-top-tier-gas-and-why-it-matters-its-at-costco/

                                                                        ORR ~ DeanB

On 15 May , 2015, at 12:23 PM, PB wrote:

> About a year and a half ago there was a thread about which gasoline to
> use.  If I remember right, there was a general consensus that Vanagons were
> made to use cheap gas, so I immediately switched from 91 octane Costco gas
> <http://blog.modbargains.com/what-is-top-tier-gas-and-why-it-matters-its-at-costco/>
> to 87.
> 
> A few weeks ago, after a tuneup and compression
> ​ adjustment​
> in all 4 cylinders, my mechanic, Bela, told me I was using "BAD GAS."  He
> told me that Costco gas was BAD, and would ruin the cylinders, and that I
> needed to use 91 (89 at the lowest) octane *MOBIL* gas for the best
> performance.  (Mobil gas is extremely high-priced, and averages $.3
> ​5
> - $1.00 per gallon above all other brands.)  OK.  So I switched to Mobil
> 91 octane - for my van ONLY, and I actually have been getting better
> mileage.  (Had to use Gas Buddy to find the lowest priced Mobil, which is
> ​
> on my daily route, and pay cash to avoid credit card surcharge
> ​.)​
> 
> 
> Yesterday, I noticed the dog-eared stickers on my passenger door, and was
> able to see that 91 octane was recommended when the vehicle was made
> <http://s74.photobucket.com/user/edtech2000/media/Westy%20Sticker%2091%20Octane.jpg.html>!
>  Another online source
> <https://www.bimmerfest.com/forums/showthread.php?p=5572227> suggests that
> cheap gas is OK if you supplement with a fuel cleaner every few tanks.
> 
> Does anyone agree that cheap gas is OK if used with fuel cleaners?  What
> about Mobil vs other brands?
> 
> Patti
> 9 Westy Automatic
> Los Angeles
> 
> 
> *♪♫**♥**♫♪♪♫**♥**♫♪♪♫**♥**♫♪♪♫**♥**♫♪*
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