Changed the oil yesterday no big deal. I put in the jug this time so i can measure how much came out. Well the last time i changed it was 125,500 and now at 128,900. Well I measured out 3.8qts .. I put the entire Jug of Mobil One Full Syn in and a KN oil filter. The exhaust does not smoke nor smell of oil consumption. Also there are no drips or wet spots anyplace on the block. Coolant is clean. I put dye in the oil last night and there are no signs of any leaks. WTF is going on. Also when I was under there i saw and exploded tie rod end, leaky water pump (again) and leaking pinion seal (again) com'on truck gimme a break owell she's going in the spring till i get out of school and get another ranger.

 

Valve Cover.
its not Leaking oil, Its sweating power.

 

Keep in mind the combustion chamber is lubricated with oil, with that being said that oil will burn off. Also the PCV system allows the oil vapor to be burned.

So losing about a half a quart between oil changes is normal. Oil consumption is normal, the question is how much how fast. Also the filter will hold oil even if you drain it.

Now I can tell you do not check your oil when you get gas, I suggest you start.

 

I check mine when i wash it, So about once a week/every two weeks.
but yea. Start checking it to see how much your losing, how fast.

 

when is the last time you calibrated your jug? the markings may have slid up.

 

~4 qts in the pan, not quite a quart in the filter, and the engine will retain a bit, it doesn't sound like you have a consumption/usage problem. Next time you do a change, start it, let it cool a good while, look at the stick and note the spot. Take it from there. FWIW, my old OHV Ranger used maybe 1/2 quart of oil on each of the first two changes (~3K miles) when new, and after that it lost more than a few ounces between changes (virtually undetectable on the stick) unless it was being pushed, like, going down the freeway at 70 with a buttload of weight and dragging a trailer behind it. Sold it at 182K, still not using anything measurable between changes and with typical daily driving.

*FWIW, I had a car that had minimal oil consumption between changes until I put a Fram PCV valve on it. Got rid of the Fram, got a PCV valve from Gov't Motors, and end of problem. Something to think about if you've changed PCV valves.

On Edit: Just curious, why are you monitoring oil consumption by looking at the amount in a drain jug and not by using the stick in the first place?

 

Any Northstar engine (caddys ftw) are designed to burn a quart of oil in between changes. Thats right
Burn. a. quart. you put in 7 quarts, take out al ittle less than 6.

 

^same deal with the rotary engines

 

I thought the guy with the ? had a Ranger?

Yeah, a buddy of mine and a neighbor have both tried those northstars Caddies, they had to add something like 1/2 quart between changes. That's hardly enough to get excited about. Replacing the starters on those, well, that's a cause to be pissed. The madza, well, the seals were a mega fail in the beginning, with cars leaving massive blue smokescreens not too long after they first came out. If you got 30K and weren't using significant oil between changes, you had an exceptional car (up to that point anyway). Over the years, they managed to get better. However, that rotary was chitty enough in the beginning that Chebbie, which had planned on putting a rotary in the Monza and delivering the first American rotary, bailed onit at about the last minute possible due to seal problems. Smart move, saved them some reputation.

 

first off the rotary engines actually had an oil injection system to inject it during combustion, and with later designs of the apex seals they became more reliable, and chevy actually tried using a four rotor version in a corvette but it didn't take...