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Old 11-29-2012, 06:52 AM   #165 (permalink)
suspectnumber961
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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
90 day: 32.89 mpg (US)
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Quote:
Originally Posted by freebeard View Post

I'd heard about 20z/10gal of acetone but I haven't tried it. Do you see any difference in your mileage? Is the Xylol 'and' or 'or'? And what's the synth oil for? My digression bears fruit.
Started out using 6 oz acetone/xylol (50-50) and think I saw a drop in mpg by maybe 5-6%. Been gradually reducing to 3 oz acetone/xylol...now moving to 2 oz acetone/1 z xylol and will use over winter. All with some synth oil (~ 1 oz) ...supposed to lube piston rings when at top travel where most friction is supposed to occur. Hard to say about mpg...temps are cooling...just added copper core plugs...did notice top of pistons now showing clean alum areas with some "old" carbon crust left.

As far as I can tell... 2 oz acetone/1 z xylol is the best bet for mpg gains. Might try 2 oz acetone/1 z xylol/1 oz diesel this summer.

According to the sticker under the hood...this car is both a PZEV and a ULEV (Cali)....so it should have been burning clean...at least what comes out the tailpipe. Using a PCV jar and have no CEL. Maybe with the additive the converter and O2s will clean up and last longer?
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Last edited by suspectnumber961; 11-29-2012 at 07:12 AM..
 
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