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Old 06-16-2010, 08:31 PM   #22 (permalink)
ShadeTreeMech
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Join Date: Apr 2009
Location: Arkansas
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The Van - '97 Mercury Villager gs
90 day: 19.8 mpg (US)

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It's the cetane booster what done it. The higher the cetane level the better the mpgs. I'd consider using it more regularly (like every tank full, if it's simply a cetane booster) if it doesn't raise the cost of a tank of fuel too much.

What was the capacity of the cetane booster? Kinda like adding a bit of fuel midtank, but the cetane booster did the job I'm sure.
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Quote:
Originally Posted by jamesqf View Post
I think you missed the point I was trying to make, which is that it's not rational to do either speed or fuel economy mods for economic reasons. You do it as a form of recreation, for the fun and for the challenge.
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