You should somehow add other variables to your spread sheet?  Are all
of these mpg's based on the exact same road, traffic, temperature,
altitude, load, wind conditions, etc. I think those variables will
more than account for the differences in your mileage?

as I usually say:

YMMV,

Mr. BZ-running the same gas co. fuel might show the same different mpg
based on the driving conditions variables?

On Jun 17, 2010, at 1:03 PM, Marius Strom wrote:

> Data...
>
>
>
> I've been tracking for the past 3 months the various fuel suppliers/
> octanes/ethanol blends that I put in my 88 Westy full camper.
> Here's some info.. I've got Shell 87 in the tank now and should have
> an initial read of that one in a week or two. :)
>
>
> Date
>
> Fuel Supplier
>
> Octane
>
> Miles In
>
> Trip
>
> Gallons
>
> Miles/Gallon
>
> 4/1/2010
>
> Unknown
>
> Unknown
>
> 213,771
>
> 225.3
>
> 14.059
>
> 16.0253
>
> 4/26/2010
>
> Chevron
>
> 87
>
> 214,003
>
> 231.9
>
> 13.861
>
> 16.7304
>
> 5/2/2010
>
> Union 76
>
> 87
>
> 214,230
>
> 227.3
>
> 12.855
>
> 17.6818
>
> 5/23/2010
>
> Chevron
>
> 87
>
> 214,452
>
> 222.0
>
> 12.630
>
> 17.5772
>
> 5/29/2010
>
> Chevron
>
> 87
>
> 214,640
>
> 187.2
>
> 10.526
>
> 17.7845
>
> 6/10/2010
>
> Chevron
>
> 87
>
> 214,858
>
> 218.5
>
> 12.803
>
> 17.0663
>
> 6/11/2010
>
> Union 76
>
> 87
>
> 215,053
>
> 194.6
>
> 10.074
>
> 19.3171
>
> 6/12/2010
>
> Conoco
>
> 87 E10
>
> 215,234
>
> 180.6
>
> 9.508
>
> 18.9945
>
> 6/13/2010
>
> Conoco
>
> 87
>
> 215,441
>
> 207.2
>
> 10.454
>
> 19.8202
>
> 6/14/2010
>
> Chevron
>
> 87
>
> 215,639
>
> 197.9
>
> 10.671
>
> 18.5456
>
>
>
>
> And the summary table:
>
>
> Row Labels
>
> Average of Miles/Gallon
>
> Chevron
>
> 17.54080575
>
> 87
>
> 17.54080575
>
> Union 76
>
> 18.49944483
>
> 87
>
> 18.49944483
>
> Unknown
>
> 16.02532186
>
> Unknown
>
> 16.02532186
>
> Conoco
>
> 19.40734773
>
> 87
>
> 19.82016453
>
> 87 E10
>
> 18.99453092
>
>
>
>
> Now, granted, fuel economy is one indicator of "runs best", but
> Conoco 87 is clearly in the lead for our Westy.
>
>
>
> Arco - I refuse to go anywhere near that stuff.  On our Prius, we
> usually average around 48-50.. I filled up Arco in it one time, and
> economy dropped to 42-44 for the next three tanks of gas..  Avoiding
> that stuff like the plague.
>
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> Behalf Of craig cowan
> Sent: Thursday, June 17, 2010 11:21 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Techron
>
>
>
> "I find BP gasoline (and all their oil products) to be the best on
> the market."
>
>
>
> Ready....
>
> GO!
>
> (Running away with a smerk on my face)
>
>
>
> -Craig
>
> '85GL turned WESTY
>
> BOSTIG in the back
>
> (The truth is, I can run any gasoline or ethanol product just fine.
> I'm now indifferent. I am however somewhat anti BP for the last 50
> or so days...)
>
>
>
>
>
> On Thu, Jun 17, 2010 at 1:59 PM, Annie <lsandrsn@gmail.com<mailto:lsandrsn@gmail.com
> >> wrote:
>
>
>
>> I've noticed that in mine too - 76 gas makes it run poorly, indeed. I
>
>> have good luck with Shell or Arco (believe it or not). Never tried
>
>> Chevron so I can't answer that, at least for the Vanagon. But it made
>
>> my Acura and my Subaru run poorly.
>
>>
>
>> Be blessed,
>
>> ~Annie
>
>>
>
>> On Thu, Jun 17, 2010 at 10:10 AM, Jake de Villiers <
>
>> crescentbeachguitar
>> @gmail.com<mailto:crescentbeachguitar@gmail.com>> wrote:
>
>>
>
>>> Whereas I've put gas from 76 stations in three different Vanagons
>
>>> and had them run very poorly indeed.
>
>>>
>
>>> We no longer put that kind of gas in our vans.
>
>>>
>
>>> Jake
>
>>>
>
>>> On Thu, Jun 17, 2010 at 9:48 AM, Tom Buese <tombuese@comcast.net<mailto:tombuese@comcast.net
>>> >> wrote:
>
>>>
>
>>>> Not trying to start a flame war here, but I swear that my buses
>
>>>> run better when I run Chevron gas w/ the techron in it.
>
>>>>
>
>>>> YMMV,
>
>>>>
>
>>>> Mr. BZ-no scientific data to back up claim
>
>>>>
>
>>>>
>
>>>>
>
>>>> On Jun 16, 2010, at 10:57 PM, Tabe Johnson wrote:
>
>>>>
>
>>>> So Techron is the cat's meow... Is there a reference for a study
>
>>>>> showing this, or is it just "everyone knows that Techron actually
>
>>>>> works and nothing else does"?
>
>>>>>
>
>>>>> tabe johnson/90mv
>
>>>>>
>
>>>>
>
>>>
>
>>>
>
>>> --
>
>>> Jake
>
>>>
>
>>> 1984 Vanagon GL 1.9 WBX 'The Grey Van'
>
>>> 1986 Westy Weekender/2.5 SOHC Suby 'Dixie'
>
>>>
>
>>> Crescent Beach, BC
>
>>>
>
>>> www.thebassspa.com<http://www.thebassspa.com>
>
>>> www.crescentbeachguitar.com<http://www.crescentbeachguitar.com>
>
>>> http://subyjake.googlepages.com/mydixiedarlin%27
>
>>>
>
>>