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!

 

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...

As long as you're not smoking, you're good to go

 

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.

 

I believe by TPS on s5s