"Tavish Muldoon" > wrote in message
om...
> Hello!
>
> I have a used 92 Passat CL with no drivers manual anymore. The fuel
> opening area say 87 Octane is fine, but premium fuel is preferred.
>
> I assume there must be some knock sensor to detect grades of fuel?
yes.
>Is there any benefit to using premiun (91,92,93 or 94) octane vs. 87
> in this model of car?
yes. to a point.
> Better MPG?
correct. offset a bit by higher price. just a bit.
more power too. you make your choices.
>The difference in cost between a litre of 87 and 91-94 is
> $0.20/ litre - so it is significant (1 US Gallon ~= 3.8 litres). I am
> trying to see if is worthwhile
>
> Right now in the city, a 70 litre tank of 87 gas gets me around 600km
> in the city, around 800+ km on the hightway. (1 mile ~= 1.6 km)
>
> Thanks,
>
> Tmuld.
my prediction - you are going to get ALOT of news on this post. most it
will be BS. but not all.
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