Question about 2007 Chevrolet Avalanche LTZ

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Bought an 07 avalanche used at 30k miles. Burns about 2 quarts of oil every other week. No oil stains in driveway. White smoke occassionly when starting up. Dealership doesnt have a clue.

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Replace the driver side valve cover. It leaks internally into the pcv system and gets burned. you don't see much smoke because the catalytic convertors burn it up.

Posted on Jun 03, 2009

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I have a 2011 Kia Optima with 130000 miles on it. I go through 4 quarts of oil before my 3000 mile oil change. I was wounding if there is any kind of recall or what can you suggest.


As the engine wears out oil slips past rings and valve seals the oil becomes blowby and the engine just uses oil. It does not have to smoke to use oil.

May 21, 2017 | Kia Cars & Trucks

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Burns quart of oil in 5,000 miles and dealer says its normal. Bought used as certified used car-only 45,000 miles


Depends on make and model. Cadillac Northstar engines often use a quart between 3000 mile changes, and this is considered normal.

Jun 04, 2015 | Cars & Trucks

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White smoke out tailpipe car has 17300.00 miles


White smoke is coolant being burnt in the cylinder,
most likely from a failed head gasket

I would think a 1989 is too old to fix
Cost more than the car is worth

Any oil useage between oil changes every
say 3000 to 4500 miles is too much,engine is
worn

Jan 27, 2013 | 1989 Mercury Tracer

1 Answer

I have an extended warranty what should I do. It burns like 2 quarts of oil a week and less than 200 miles.


get rid of it,anything that is using or loosing that much oil has problems,sorry

Sep 06, 2012 | 2001 Cadillac DeVille

1 Answer

White smoke coming out of tail pipe.


WHITE smoke? Or BLUE smoke? White smoke is usually caused by burning antifreeze (possible blown head gasket). Engine oil burning causes a bluish colored smoke.

Changing the oil two months ago means absolutely nothing to me. I have customers that travel 6000 miles or more in a month. Oil consumption is measured in volume over miles, not volume over months. It is normal for most 4 cylinder engines to use a little less than 1/2 quart in 1000 miles (even more than that for 6 cylinder and 8 cylinder engines).

Apr 12, 2012 | Cars & Trucks

1 Answer

Blue smoke


Blue smoke is never a good thing....

Blue smoke is caused by engine oil entering the cylinder area and being burned along with the fuel air mixture. As with the white smoke, just a small drop of oil leaking into the cylinder can produce blue smoke out the tailpipe. Blue smoke is more likely in older or higher mileage vehicles than newer cars with fewer miles.
How did the engine oil get inside the cylinder in the first place? The car has many seals, gaskets, and O-rings that are designed to keep the engine oil from entering the cylinder, and one of them has failed. If too much oil leaks into the cylinder and fouls the spark plug, it will cause a misfire (engine miss) in that cylinder, and the spark plug will have to be replaced or cleaned of the oil. Using thicker weight engine oil or an oil additive designed to reduce oil leaks might help reduce the amount of oil leaking into the cylinder.

your engine has worn valve guides, piston rings An engine that burns a lot of oil (more than a quart in 500 miles) is an engine that needs to be overhauled. Normal oil consumption should be a quart or less in 1500 miles. Most newer engines consume less than half a quart of oil between oil changes (every 3000 miles). So if your engine is burning oil, it's essentially worn out and needs to be repaired.
Because the cost of overhauling or replacing an engine often exceeds the value of an older car or truck, many people will just keep on driving a "mosquito fogger" in spite of the blue clouds of smoke it leaves behind. Never mind the pollution it causes, oil is cheaper than a new or rebuilt engine they reason. That philosophy may be okay if you live out in the sticks somewhere. But in urban areas that require periodic vehicle emissions testing, an engine that's burning oil usually won't pass the test because of excessive hydrocarbon (HC) emissions. You may get by on a waiver after you've spent some money (in vain) on a tune-up, but the fact remains you're still a polluter.
An engine that burns a lot of oil will also eventually foul the spark plugs. Thick, black oily deposits build up on the plugs until they cease to fire. Then the engine misfires and loses power. Cleaning or changing the plugs may temporarily solve the problem, but sooner or later they'll foul out again.
Forget about "miracle" oil additives or pills that claim to stop oil burning. They don't. Better to save your money and put it towards a valve job and new set of rings.

Feb 23, 2010 | 1990 Ford Festiva

4 Answers

Oil Change two weeks ago and oil level is low already???


I assume you have no leaks as you say. Your van does hold 5 quarts of 10w30 oil with filter change. The level was 1/4" above the add mark, which is less than 1 quart low. You drove the van 1,300 miles so it is very possible that it could burn that much oil in that many miles without you seeing much smoke. Top it off and have someone else drive it. Have them get up to around 60 mph, then let off the accelerator and let it coast down to 30 mph, then accelerate fully while you follow in another vehicle. If your van is burning oil you will see a big puff of blue smoke when they accelerate after coasting. If you do not I would suspect you were cheated out of about 1/2 quart of oil. You would not be the first person this has happened to. Top it off and check as I described and then check the level after driving another 1,300 miles. If it is still full find another place to change your oil as the place you went are crooks.

Sep 09, 2009 | 2001 Dodge Caravan

1 Answer

2007 Chevy Avalanche burns oil.


IF ENGINE IS FRESH,NOT BEEN BEAT ON AND YOU KNOW THE HISTORY TRY THE PCV VALVE AND HOSE. PCV MAY BE RECIRCULATING THROUGH INDUCTION AND BURNING YOUR OIL. THIS IS ASSUMING PISTON RINGS ARE GOOD AND YOU ARE USING THE RIGHT OIL. SEE IF AIR FILTER IS DIRTY,IF SO REPLACE IT AND NOT WITH A K&N IT DAMAGES MASS AIR SENSORS AND FUEL MILEAGE WILL GO BYE BYE AND POSSIBLY DRIVEABILITY ISSUES. MARK DIP STICK AND TRY THESE FIRST. QUICK CHECK PULL OFF INDUCTION TUBE,OPEN THROTTLE BODY AND JUST LOOK IN FOR OIL IN THE INTAKE MANIFOLD.

Jul 12, 2009 | 2007 Chevrolet Avalanche LTZ

1 Answer

Excessive oil use


the time it takes to use one quart is not the figure I need, how many miles does three weeks represent? 1000 miles per quart is ok, less and you will need new rings in most cases, which of course means an engine overhaul.

Mar 13, 2009 | 2002 Saturn L-Series

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