winter fuel consumption
Robert Myers
bob at chips-ur-s.com
Tue Jan 25 19:45:43 PST 2011
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Part of the problem is that winter fuels are a different composition
than summer fuels. In winter methyl-tert-butyl ether (MTBE) is
blended into the fuel to cause the burn to be "cleaner". MTBE also
lowers the energy content per unit of fuel. This will reduce your
mileage significantly. Is this the entire cause of your problem? I
have no idea but it is certainly part of it.
Bob
At 09:50 PM 1/25/2011, 200q 20v wrote:
>*This message was transferred with a trial version of CommuniGate(r) Pro*
>Every winter my 200 becomes a gas guzzler. With the coldest winter on
>my ownership on record (global warming?) it has been the worst. It is
>approaching consumption of a 4.2 V8 in city driving. There is no loss
>of power, fuel smell, unusual exhaust, etc. VAG-COM data appears to be
>withing recommended limits.
>
>The only observation is that when engine is cold simultaneous clutch
>disengagement/gas release while driving with no acceleration (2nd or
>3rd gear) on a horizontal road results in noticeable RPM increase for
>a fraction of a second. If accelerating it is even more noticeable.
>
>Has anyone seen/solved anything like this?
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