I find a strange senario happening in that my Volvo D will actually get better mileage with the lesser fuel during the summer. In the winter however, it won't even start with the stuff without filling the entire state with a blue smog. The premier (Amoco) is the only thing which will start it fairly clean during the cold. Looking forward to comparing the MB's this coming winter and their taste for different fuels.

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DAILY DRIVERS:
'84 300DT 298k (Aubrey's)
'99.5 Jetta TDI IV 251k (Julie's)
'97 Jetta TDI 127k (Amber's)
'97 Jetta TDI 186k (Matt's)
'96 Passat TDI 237k (Don's
'84 300D 211k Mint (Arne- Undergoing Greasecar Conversion)

SOLD:
'82 240D 229k (Matt's - Converted-300DT w/ 4 speed