The OD makes a lot of difference, as well as the torque of the 3.1. According to the guino I did get like 40.5 for my Friday trip there, and 39.7 home. After that, winter came back in full force and the Celeb was parked for the week.
Then the other day the van started running bad right as the wife was ready to go downstate for a week for spring break, so I stripped all the mods including the mpguino off the Celeb and let her take it. I would have liked to see if she could get better mileage with the mods, but I didn't like the thought of a flashy looking car parked in Grand Rapids for a week, it'd be a break-in target for sure. When she comes back I'll put the mods back on and get started on the kammback.
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Winter daily driver, parked most days right now
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Summer daily driver
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