[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
John D Mccormack wrote: > Hey - this may be a bit premature for winter in VA, but this'll be the > first one with my '72 squareback. Anything i ought to be > considering as > the cold weather comes this way? Someone said I ought to step > down to a > lower octane gas as the fuel doesn't vaporize in cold weather, etc and > higher octane gas has a higher combustion temp, or something like that > anyway, but the engine really pings with anything less than 90 > octane. > But that's just the gas....what else? > > Dave > Dave, forget the octane stuff. VW said that a Type III engine needs 90 and nothing less!!! I cannot understand what the panic is about driving in the winter. I usually switch on the heating and thats it. No different fuel, no different spark plugs, no different oil, no nothing. This car is not from before the war, it is designed to run in the winter. By the way the filling station will do the fuel change. There is a difference between marketplace fuel in the summer and in the winter. The winter fuel does evaporate easier or put it the other way round the summer fuel does not. This is basically to prevent that too much fuel disappears into atmosphere in the summer. This has nothing to do with the octane number. Keep driving. Heiko (Fuel system engineer at a german car manufacturer) 68 Notch, 70 Fast, 71 Fast