: Anybody having heavy oil consumption in V6

03-11-07, 11:42 AM
My 2006 v6 has just under 60K kms on it and is using what I consider too much oil. It is using about a quart a month (4000 KMS) with no evidence of leaks or smoky exhaust. My warrantee will be up soon and I would like advice as to how to handle this one. Thanks for your feedback, Dan.

03-11-07, 02:20 PM
I think that I would go to my dealer with the complaint and go on record with it and see what they can find.

03-11-07, 09:03 PM
Since my last oil change at 21,000 miles, my 2005 V-6 has begun consuming about a quart of oil every thousand miles. Had never added oil before during previous computer recommended change intervals, but would usually be about a quart low at oil change time. I've now added 4 quarts since last change and am still a quart low. Seems like I add to the crankcase about as often as I add to the fuel tank these days.

03-11-07, 10:28 PM
"Gee, I shoulda had a V8"

Sorry, fellas, but my '04 V8 doesn't use a drop of oil. I'm at 40,000 mi.

See dealer before warranty is up.

Kauai 1
03-12-07, 07:04 PM
My '04 V-8 uses no oil, at 29,000 miles. If an engine starts to use oil suddenly, something is wrong! Do not let the dealer tell you that your usage is well within "normal" parameters. (If you had 90,000 miles on the odometer, perhaps your oil consumption would be acceptable.)

03-16-07, 11:53 AM
My 04 V6 used what I felt was too much oil as well. No leaks, No smoke, just disappeared. Trade it in with about 65K miles.

A story that I am embarrassed to tell. But my check engine light came on.
The engine was dogging big time.
Thinking it was emissions, I took it to the dealer. They said the cam sensor was sensing low oil. I only had about 4K since my last oil change. I either got shorted by the oil change joint, or was really using oil. They changed the oil, and I was good 2 go.

DUH..........your supposed to check the oil???

How embarrassing......................

04-02-07, 01:58 PM
Was at the dealer today and was told that 1 litre/quart in 1500 kms/940 miles ia excessive and anything less than that is OK. Does anyone have any solid facts on this policy? I am used to this age of vehicle not using a drop of oil between changes and this sure seems excessive to me! Dan.

c5 rv
04-02-07, 06:50 PM
Unfortunately, the "standard" for oil use that GM uses is excessive in my book. My current SRX needed a quart of oil at about 5000 miles - about 60% of OLM.

04-02-07, 11:26 PM
I have read older bulletins from GM that say it can very and excessive is 2 quarts every 2000 miles (Reference number 18-61-03) but can very greatly depending on driving conditions, oil viscosity and explains on how engines depends on a thin oil film to lubricate the cylinder walls, pistons, and piston rings. Bulletins from Aug, 1998 say 1 quart every 2000 miles http://www.caddyinfo.com/oilusagetsb.htm

04-09-07, 01:06 PM
Just finished a trip of 3900 miles. Central Illinois to NM, CO, UT, AZ four corners, Grand Canyon, Phoenix and back. Elevation change of about 670 ft to over 7000 ft. Mostly 65 to 75 on the highway with lots of grades at over 3000 RPM for cruise to hold speed and then lots of down grades shifting down to avoid using brakes.

Had oil changed before leaving and no noticeable drop in the oil level. Cool weather helped the gas mileage at 20.1 MPG for the trip.

04-18-07, 10:30 AM
I am in the same boat. 04 V6 last time in had 30% left on the OLM check engine light went on, engine got a little noisy and what do you know? about 3 quarts low. 65K miles and it uses oil. My 01 Trans Am has 95K on it and doesnot use a drop. The service guy blamed me for the oil being gone, said I should have had it changed. Manual says to change when the OLM says so who's right? Don't know. :want:

04-18-07, 02:15 PM
Oil life does not equal oil level. The oil life moniter simply tells you when the oil is breaking down and getting old. You must still moniter the level as you would in any vehicle.