Will a rebuilt engine burn oil?

Question

I recently had the engine in my 1993 Geo Prizm rebuilt. It now has a new crankshaft, rings, valves, and many other components. While it’s running great, I’ve noticed that it’s burning some oil. After driving about 300 miles, I’ve found it to be half a quart low. I started with full synthetic oil, and I’m curious about why it’s losing this oil. There are no visible leaks, and I don’t see any white smoke coming from the exhaust. The mechanic who performed the rebuild mentioned that these Geos are known for burning oil, but I would expect that after a complete rebuild, it shouldn’t burn any oil at all. What could be causing this issue?

Anonymous · Accepted Answer

Not if it is Rebuilt the right way,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

Anonymous · Answer

It depends. As some engines naturally burn oil. If you notice smoke at start up, and pulling off from a stop light then I would be worried and conclude that the rebuilt was not done right if not then don’t worry, as some engine use more oil than others, just keep the oil checked and changed normally, and you’ll be fine. However keep in mind and observe the oil consumption weekly, and while you’re at it remove the spark plugs and check and see if they are oil fouled. If so then you have a problem.

Joana Friesen · Answer

I tend to side with you! Many REBUILDS are not as good as the factory job is! perhaps he used a different set of RINGS or did not hone the cylinders the right way??? SYNTHETIC is GREAT OIL< but there is also a BURN IN OIL that seats the rings best! THEN you follow up with SYNTHETIC after the rings have broken in! GOOD LUCK!!

Anonymous · Answer

Yea if someone who didn’t do it right

Anonymous

Will a rebuilt engine burn oil?

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