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Old 07-09-2009, 06:48 AM   #12 (permalink)
suspectnumber961
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Join Date: Mar 2008
Location: I flitter here and there
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highcountryexplorer - '86 Nissan 720 KC 4x4 ST with fiberglass cap
90 day: 21.78 mpg (US)

Elroy - '03 Ford Focus ZX3 w/Zetec DOHC engine
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Quote:
Originally Posted by wwelder View Post
It's a '94 metro 1.0 engine with no pre-existing problems. Carbon build up seems to be a problem with this particular engine that I am trying to head off.
I change oil every 7K....use a pint of water in the intake thru an old dish soap bottle...keeping the revs up around 2K. Then add 1 pint kerosene to the oil...run at fast idle for 15 mins...then new oil and filter.

If you use a fuel additive like acetone or iso or ??...you can improve combustion and reduce carbon buildup.
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