Oil consumption math.
09-02-04, 05:06 PM
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Oil consumption math.
I was reading up on methods for checking the OMP. Haynes say's to pull two lines off the pump, hook up test hoses in their place and run these into a measuring cup. Run the engine at 2k rpm for 5 minutes you should get 4.5 to 5.5 cc's of oil. I'm guessing that the other two hoses are putting out the same amount. So apparently we're looking at 2 cc's per minute (10 cc/5 min), or 120 cc's per hour. There are 946 cc's in a quart, so 8 hours at 2k rpm will burn a quart. I felt a little better about my oil consumption after I read that. If my figures are sh*t let me know, I'm sure there are variables, but at that rate you probably would only get 500 miles or so on a quart. I'm new to RX7's, just bought an 88 vert. It runs great, but uses a quart of oil every 5-7 hundred miles, with no smoke (except on starting) Happy Motoring!
09-02-04, 05:20 PM
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Hmm..I don't remember using that much oil when I had the OMP on mine (years ago). Maybe a quart every 1000 miles, if that. Then again, maybe the OMP was crap, lol...
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09-02-04, 06:34 PM
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Originally Posted by Digi7ech
general 1qt range is going to be any where between 700-1000 miles depending on how much of a lead foot you have. It is injected by throttle opening on S4's.
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