Quote:
Originally Posted by XYZ
Do you REALLY think this engine did the described burning "a quart every 1500 miles or so" from the day when it was new?
Do you think that this is due to the design of the engine, or that it's due to its age (and/or possible abuse)?
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It's not a new engine problem. It doesn't develop until after it turns 'high mileage'. A quart every 1500 miles is actually pretty good for this particular issue. I've heard of people who use a quart of oil a week.
It's a mix of design and improper maintenance/abuse. The design is the overriding problem in that the oil return holes are too small. But many people have not had an issue. These people usually are highly meticulous about their OCIs and so the gunk does not develop. They usually also are using synthetic oil, which is another way to keep the problem from developing. The people who forget about oil changes and use the 'thick' stuff are usually the ones with the problem.