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Old 07-31-2010, 02:28 PM   #20 (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)

Lyle the Kindly Viking - '99 Volvo V70
90 day: 25.82 mpg (US)
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Quote:
Originally Posted by mwebb View Post

do not use diesel in your gas - it will NOT enhance anything .
I suppose it depends on the engine design. Some cars will do well with diesel added, especially the older, more rudimentary engines. I had a 96 spectrum with a 1.5 that could run diesel when mixed with a bit of gas---mind you I didn't log the fuel consumption with the tenacity which my esteemed collegue mwebb has so intricately done; it was simply a matter of being able to get cheap off-road diesel for free in a time of financial hardship.

I honestly don't think diesel is a good additive for the modern gas engine, but it helps a bit on the older ones by helping to burn off some of the gunk of years of hard work.
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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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