Excessive Engine Oil Consumption on Cadillac DeVille

Vehicles equipped with the 4.6L engine may develop excessive oil consumption. Please be advised that under optimum driving conditions, using one quart of oil every 2000 miles is acceptable. This Cadillac standard applies to vehicles with less that 50,000 miles. Our technicians tell us that if you experience excessive oil consumption it may be caused by built up on the piston rings which restricts movement, preventing them from wiping all the oil from the cylinder walls. Oil left behind is then burned during the combustion process. There is a special ring cleaning procedure which can help this situation. The GM service bulletin number is #02-06-01-009C.

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Average mileage: 92,003 (10,000–176,882)
8 model years affected: 1996, 1997, 1998, 1999, more2000, 2001, 2002, 2003
85 people reported this problem
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Viewing 1 - 20 of 41 problem details
2001 Cadillac DeVille 78,000 mi,
Burns 1 quart every 1,000 miles, but does not smoke ar leak.
2003 Cadillac DeVille 60,000 mi,
vehicle uses a quart of oil approx every 200 miles. no smoke , no leak
At 100k miles my '02 is consuming 1qt every 1100 miles.
Since purchase of car, engine uses large amount of oil. Must check oil stick to make sure engine has enough. This problem should have been recalled to be fixed a long time ago. Shame on Cadillac DTS 2000 model.
2000 Cadillac DeVille 70,000 mi,
Ours uses about 8 quarts in between oil changes (every 3,500 miles). I call it Extremely excessive oil consumption :) Does not drip any oil nor does it smoke, just drinks it.
2001 Cadillac DeVille 125,122 mi,
burning 1qt every 1 1/2 weeks! Had pistons cleaned 4/26/11 still burning oil just as much!
2001 Cadillac DeVille 49,000 mi,
I had 3 of 4 window regulators go out within a month of purchase (used). Beautiful car, but it also guzzled oil like it was going out of style. I read the posts and have done the following: every now and then I stomp it real good for a brief run to clean out the carbon. I use Chevron Techron additive every few tanks and switched from cheaper gas to Chevron (with Techron. I have no stock in Chevron, but for weeks now the car hasn't used a drop of oil (thank goodness!). Keeping an eye on it and haven't taken any real freeway trips, but around town, no oil usage. Each car may be different, but I am happier now.
2003 Cadillac DeVille 92,000 mi,
common problem. I'm told that adding new oil between oil changes actually helps prolong engine life as the oil doesn't get as dirty as it would normally get between changes.
2002 Cadillac DeVille 146,000 mi,
voracious consumption slowed by the use of lucas oil stabilizer.piston slap gone also.
2001 Cadillac DeVille 95,000 mi,
3 qts. per 3000 miles.
2002 Cadillac DeVille 45,000 mi,
Cadillac dealer had to do major work on engine. GM is aware of the problem.
2001 Cadillac DeVille 50,000 mi,
2 quarts every 2000 miles
2001 Cadillac DeVille 34,000 mi,
1 quart every 700 miles..
2002 Cadillac DeVille 78,000 mi,
problem is not fixed. Add oil every 2000 miles or so
My 99 DeVille uses about a quart every 2000 miles. Was using allot more but during a recent head gasket repair I had all the gaskets and seals changed including the oil pan, timing chain, and valve covers. I am going to look into this "ring wiper" issue.
2002 Cadillac DeVille 56,000 mi,
average adding 2qts of synthetic oil a month
1999 Cadillac DeVille 140,000 mi,
Don't know why goes through oil just like gas
I just recently purchased this car and it had 76,000 plus miles and I noticed the check the oil dipstick warning came on and it was approx. a quart low. I have since added another quart at 78,000 miles. I will drive another 112 miles today and if it need oil again I'll return it back to the dealer for a refund.
2002 cadillac dts goes though 5 quarts of oil every 2000 mines. No leakage on the garage floor and no excessive or white smoke from exhaust.
1996 Cadillac DeVille 109,500 mi,
Also using excess oil at this amount of miles. Want to sell or trade before issue gets worse.