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Old 06-16-2013, 11:15 AM
 
4,683 posts, read 4,833,583 times
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I had a 2003 Nissan 350z that use to lose/burn 2qts of oil every 2-3k miles. Sure enough I sold it.
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Old 06-17-2013, 03:45 PM
 
1,973 posts, read 3,126,078 times
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This is only normal in GM cars substandard engines.
My 2007 SRX was eating 1 qt per 1k and Cadillac dealer told me is normal...

I traded the junk for an MDX and miraculously my much upgraded (when compared to SRX) Acura never burns a measurable drop in over 10,000k.
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Old 06-17-2013, 11:03 PM
 
5 posts, read 7,918 times
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Quote:
Originally Posted by 28173 View Post
This is only normal in GM cars substandard engines.
My 2007 SRX was eating 1 qt per 1k and Cadillac dealer told me is normal...

I traded the junk for an MDX and miraculously my much upgraded (when compared to SRX) Acura never burns a measurable drop in over 10,000k.
I have been around ~12 GM vehicles in my adult life and never consumed any oil.


So not normal...
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Old 06-18-2013, 08:13 AM
 
Location: "Chicago"
1,867 posts, read 2,059,395 times
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Quote:
Originally Posted by MustangEater825 View Post
I have been around ~12 GM vehicles in my adult life and never consumed any oil.
As have I. Sure, I've owned a couple that leaked, but they were older and it was obvious they leaked.

The cars that did not leak did not use any oil between oil changes. Oh, I'm certain that if I extended the oil-change interval far enough, I'd see some consumption. But in a typical 3000-5000 interval they did not lose oil.
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Old 06-18-2013, 08:34 AM
 
4,803 posts, read 9,444,154 times
Reputation: 8173
For what it's worth I did talk to the Chevy service maintenance supervisor yesterday and he said losing a quart every 5000 to 7000 miles is normal. I drive mostly highway miles and he said I am more likely to lose a little oil because the pressure in the seals doesn't build up as much as in city driving so I might lose a little.
I am only reporting what he said.....

My two previous cars, a Toyota and a Saturn before that, never lost oil and I drove them the same way. In my Saturn I did get the oil changed about every 3000 miles so maybe it didn't have enough miles between changes to lose any.

So I guess I'll let it go. But I have other problems with this car and may sell it.
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Old 06-18-2013, 09:37 AM
 
1,973 posts, read 3,126,078 times
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Quote:
Originally Posted by MustangEater825 View Post
I have been around ~12 GM vehicles in my adult life and never consumed any oil.


So not normal...
I know that GM also has some good engines.
However, the HFV6 (3600 LY7) engine is a hit and miss. Main reason in my opinion, it is that it not using an o-ring seal but the adhesive for the timing chain cover to the engine block. Problem with that adhesive is that during assembly of cover on dirty (oily) engine blocks, on many engines the seal does not happen.

I ended up loosing a lot of money to get rid of the lemon since my timing chain was starting to act up and I was driving around with oil quarts in the trunk (to make sure I fill on regular basis and don't run out).
This is a known problem for the HFV6 engine that is widely used in GM products.

Cadillac SRX 3.6L Timing Chain Failure - Bob Is The Oil Guy

In the past i also had to spend a lot of money on a brand new Buick Rendezvous that decided to leak coolant just after coming out of warranty. Way before that it was an Oldsmobile that cost me a lo of money and more headache with the GM dealers...

So my displeasure for GM is reasoned since it hit me in the pocket many times, so I'm now sworn off GM product...

Last edited by 28173; 06-18-2013 at 10:08 AM..
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Old 06-18-2013, 12:56 PM
 
Location: Londonderry, NH
41,310 posts, read 46,188,553 times
Reputation: 24273
I don't worry until oil consumption is over 1qt per 500 miles or so. I had a old Volvo that used 1 qt ever 100 miles but it had broken a valve and locked up the rings in that clyinder and I had to get home. That was check the gas and fill the oil for 1800 miles.
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Old 06-18-2013, 02:02 PM
 
Location: Plandome, NY
6,687 posts, read 6,645,174 times
Reputation: 3607
Quote:
Originally Posted by Malloric View Post
Just depends on your engine.

The M3 will easily burn a quart of oil in 2,000-3,000 miles, just depends how you drive it. I usually use about 1/4 of a quart between oil changes every 7,500 miles. Previously, I had an S2000 which would routinely burn 1/4 to 1/2 a quart in a few hundred miles. Track miles, that is. The oil consumption on the street. With BMWs or S2000s, oil consumption was associated with high RPMs, which I except your wife never drove above 4,000.
all my m3 never burns at 2-3k miles. Nor do any of my friends m3. At 10-12k miles....1 calendar year...it might burn about a quart. I think synthetic oil burns easily compared to conventional oil bc of its viscosity
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Old 06-18-2013, 11:03 PM
 
2,341 posts, read 7,793,044 times
Reputation: 2040
Quote:
Originally Posted by kanhawk View Post
For what it's worth I did talk to the Chevy service maintenance supervisor yesterday and he said losing a quart every 5000 to 7000 miles is normal. I drive mostly highway miles and he said I am more likely to lose a little oil because the pressure in the seals doesn't build up as much as in city driving so I might lose a little.
I am only reporting what he said......
If that's what he said about pressure and seals, he's full of crap.
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Old 06-18-2013, 11:10 PM
 
4,803 posts, read 9,444,154 times
Reputation: 8173
Quote:
Originally Posted by GarageLogic View Post
If that's what he said about pressure and seals, he's full of crap.
That is what he said and he mentioned city driving revved the engine up more often creating more pressure for the seals than highway driving helping them function better.
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