Brand of Gasoline

[Grant Lenahan]

Premium vs normal gas would only matter if you were at WOT such that it would have to retard spark to avoid detonation on normal gas. Otherwise, they would be identical within the accuracy we can measure at th pump.

Grant

On Sep 18, 2012, at 4:51 PM, Louis-Alain Richard wrote:

> Did you fill her up with Premium instead ? I'm quite sure your BWM request
> Premium but works perfectly well with regular. And the difference in mileage
> on a car that is calibrated for Premium but gets regular is around 10% less.
> 
> 
> Or it could be the other way around : your usual Chevron Premium is not
> premium at all...
> 
> Louis-Alain
> 
>> -----Message d'origine-----
> 
>> Yes, next time I will use the trip meter and take records but there was a
>> noticeable difference.
>> 
>> I have never been able to drive to PHX and back on half a tank and have a
>> couple days of gasoline left over ... obviously someone is watering their
>> gasoline or something ....
>> 
>> Fay
> 
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