Question about 2002 Chevrolet Silverado 2500HD

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Loosing engine oil,don't know ware it's going

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Whenever I encounter an engine that's missing oil I always start with the basics. First I take a good look underneath and check for any drips, no matter how small, as a leaky sending unit, oil filter, or cooler line won't leak once the engine is off. If you can park on the same spot, preferably over a clean piece of cardboard, it makes it a lot easier to spot any drips. If no drips are present then I change engine oil and filter using a top grade oil and fill the level to exactly the full mark on the dipstick. I do this because most engines will burn oil if the oil is dirty and old enough. At that point I check the oil every 100 miles or so [after the engine has been off for a few minutes] and see how long it takes before the engine is a quart low or down to the "Add" mark. Once you have this information then you can decide what or if you need to do anything. As for what's normal oil consumption? Most vehicles won't use a quart in a 3,000 mile service interval but I've seen new vehicles that take a quart every 1000 miles or so, thus there's really no good solid answer although I think a quart per thousand is excessive...but often expensive to fix if it's actually burning it. Hope this helps and good luck!

Posted on Sep 09, 2010


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