Right now I'm adding about a quart (small bottle, think they're quarts) every week to 2 weeks.. and 2 quarts in about a 3-4 week period. after 4 weeks its guaranteed to beep low oil. this doesnt seem healthy to me..

im assuming this would call for new apex seals and side seal, something along those lines, maybe a rebuild. just curious on what the average rate would be for a rebuild. i know a rebuild kit runs alittle over $1k on racingbeat.com, should i be expecting a similar price?

 

go with atkins... are you sure you don't have any leaks? check the cooler, and the pan.

 

thats a good idea, im not leaking form the pan....didnt think to check the cooler

 

how hard are you driving?

 

My black RX-7 burns a quart every 400 miles or so. It runs so good that I would rather just live with the oil consumption than rebuild it right now.

 

Another thing to check would be the oil metering pump and lines to the intake. Cracked lines would leak/drip while it's running, but don't hold enough to leak much when parked so there may not be an obvious puddle on the driveway.

Also, how much do you drive per week? If it's a significant amount, the cars are supposed to burn at least *some* oil so keep that in mind. Then again, if the exhaust is nice and blue when you start the car, a rebuild's probably in order.

 

Oil consumption has nothing to do with apex or side seals, Anton; it's the oil seals (ring-shaped seals on the rotors that surround the e-shaft) that primarily govern oil leakage into the combustion chamber. Still requires a "rebuild" to change them.

Oil consumption should be based more on mileage than on time. Even a perfectly-functioning, brand-new rotary consumes oil, and the rate depends on the throttle opening; more throttle, more oil.

500 miles per quart is not unusual at all; surveying owners will probably get you a wide range of consumption numbers, since engine age, wear levels, and driving styles all vary it. Even hilly versus flat terrain will make a big difference.

And letting it get to the point where it "beeps" for oil (low oil light on) is extremely unhealthy. You need to be ckecking he dipstick every fill-up unitl you get a sense for how much you're using.

Running a rotary dry to the warning level or beyond can kill an engine within minutes.

 

oh wow... well my engine has 132XXX miles right now, up until resently i would run that thing like hell was on my ***. just stomping the gas and going crazy. then the gas prices got to me so iv been going about 90% easier. i dont see anywhere where there could be a possible leak. iv been trying not to let it "beep" and adding oil before it does. im sure my being cheap and buying crappy oil has alot to do with it. just though of that... any recommendations? i heard theres a huge debate about that question so dont really want to start a war or anything. i hear to stay away from full synthetic

 

run 20w50 with lucas oil stabilizer. that should help a little.