Newly rebuilt engine, followed the overhaul manual to the T, double checking all the tolerances.

I drove 1,100 miles, towing, and noticed I'm down about 3/4 of a quart of oil. I was about 1/2" above FULL line before, and ended up barely above FILL line after the trip. No leaks.

Thanks for any tips.

 

Continue to monitor. A brand new car can consume 1quart per 1000mi and be considered within spec

 

Did you hook up PCV hoses correctly/ install a PCV valve?

Also, why 1/2" above full? Maybe being over filled has something to do with it. Crank can cause cavitation and oil frothing which may be causing too much oil to vaporize.

 

Yeah I have the christmas tree PCV separator in the passenger valve cover. No separator driver side. As for the hoses, they only really go on one possible way so no issue there.

Accidentally overfilled it, I was used to changing the filter along with the oil, but last time I didn't replace the filter, overfilled, and was too lazy to drain some.

I need to check the rear seal again through the inspection hole. hopefully I don't get showered in oil.

Where else could the oil go?? Past the piston rings is the only thing I can think of, but those are all new and I measured them religiously.

 

Make sure the gaps on the rings were staggered?

 

Yeah I did that correctly when I rebuilt. They sure seemed like they could move around easily though

 

X1 .................. also run a compression test on every cylinder and compare to the pressures in RAVE. It takes a long time for a newly rebuilt engine to 'bed down' particularly new piston rings in new cylinder bores. A compression test will reveal any anomalies between cylinders and any lack of bedding down against the 8x design pressures.

 

Well, no way to check the rings without removing the heads and pistons... sooo probably not going to do that. I ordered a compression tester, that's worth a shot.