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Old 07-09-2002, 02:03 PM   #11
Scooby Guru
Member#: 15543
Join Date: Feb 2002
Location: san francisco, ca
90BJ Legacy LS ABS
AWD 946 Rio Red Jpn built


What I do is always pay with my credit card at the pump so I get a receipt. I write the mileage down on the back of the receipt and throw it in the center console. I probably have every receipt from when I bought the car in there, so I could track gas mileage based on each modification. The biggest jump in mileage was one mod with the following all done at once:

Synthetic differential fluid front and rear Mobil 70w-90
Synthetic ATF Redline
Tranny Cooler in parralel (largest hayden model)
New transmission (1995 impreza)
Switch to Mobil 15w40 synthetic motor oil
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