Absurd Oil Consumption - Chevy SS Forum
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post #1 of 74 (permalink) Old 12-26-2016, 08:43 PM Thread Starter
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Absurd Oil Consumption

Hey all,
Wondering if any of you have some insight into what might be going on with my 15' SS 6MT. I changed my oil about 3500 miles ago and decided to check my oil today on a whim. It was reading BELOW the minimum line which terrified me. However, because of the odd design of the dipstick on this motor and the trouble I've had with getting a proper reading in the past, I thought maybe I was getting a bad reading. To boot, a tech at my last dealer oil change forced the dipstick in and bent it, so I also surmise that it may not be reaching the bottom of the sump. However, I checked my oil shortly after that oil change with said bent dipstick and got a perfect reading of 8 quarts.

I put 3 quarts in since the gas station I checked it at is right next to a NAPA (I was clearly thinking with my [bent] dipstick, Jimmy) of the same Royal Purple 5W-30 as my last change. After two quarts it was reading slightly above the the halfway point on the hash mark and after the third quart is reading right at the top point of the hash marks.

Now, what would possibly have caused an LS3 with less than 20,000 miles to burn 3 quarts of oil in 3500 miles? I've heard of oil consumption on high revving BMW V8's and turbocharged motors, but nothing like this. I am pretty confident the dipstick isn't the issue since the tube straightens it out, and that I've gotten a good reading with it before. The only thing I can possibly think of is that since my car was a CTF (Certified Test Fleet) car, that the motor wasn't broken in properly by whoever took delivery, and the rings have a bad seal and there is massive amounts of blow-by. However, I have never smelled burning oil from this motor at all, neither in the cabin nor under the hood.

My next question is, how the **** didn't this motor kill itself if it was running three quarts low? Are LS3's really that tough? I enjoy this car to its full potential to say the least. If this issue has been persisting, how has it lasted this long without breaking some major internal component?

Furthermore, if my motor is burning this much oil (as I plan to change it tomorrow or the next day, get a baseline, and then measure consumption over the following 500 mile intervals up until I am due for a change or I burn off enough to need to add more) do I have a case for a warranty claim of some sort?

I plan to take a sample of this change and send it to Blackstone to see if any serious damage was done by the excessively low levels of oil during operation.

Any input is appreciated.

'15 PSG 6MT No Hole/Tire - 1 of 6
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post #2 of 74 (permalink) Old 12-26-2016, 08:46 PM
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Not sure about what is going on but I thought I read somewhere that this motor tends to consume oil.

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post #3 of 74 (permalink) Old 12-26-2016, 08:53 PM
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my new 16 6speed used no oil up to the first oil change (3000 miles) , however i never "excercise" until it is fully warmed up . , at first change paid for upgrade to UPF ac delco filter and mobil 1 , have you checked for leaks ? , seems they had some problems with normal ac delco filters ...

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post #4 of 74 (permalink) Old 12-26-2016, 09:00 PM
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Quote:
Originally Posted by Nat DeBery View Post
After two quarts it was reading slightly above the the halfway point on the hash mark and after the third quart is reading right at the top point of the hash marks.
I would wonder if the person who bent your dipstick put in a different one. As far as I know, the hash marks represent one quart, top being full, bottom being one quart low. If one full quart only raised the level half of that parameter on the dipstick I'd wonder why.
I don't think you've been running three quarts low, at least not for long. The LS3 is that tough, but you would have had indication of some sort prior to that. What that indication would be I can't speak to, perhaps Wiseman or CB or someone else will chime in. Keep us informed as you move forward!
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post #5 of 74 (permalink) Old 12-26-2016, 09:03 PM Thread Starter
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No, it's the same dipstick because it still has a kink in it. And it wasn't just below the bottom of the hashed area with the three indentations, it was below the LOWEST indentation mark, near the bottom of the dipstick.

I'm just as confused as you are. There's no way it could've run this well, this long, with NO signs of any issues (no lights under heavy acceleration or braking, even). I'm thoroughly rattled. Thanks for your input 15SS, hopefully they will chime in!
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'15 PSG 6MT No Hole/Tire - 1 of 6
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post #6 of 74 (permalink) Old 12-26-2016, 09:05 PM
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Go to your dealer for the oil consumption issue. They will top off your oil,and ask them to start an oil consumption test. You will need to bring it back when it is either 1qt. low, or 1K miles. You will do this a few times so they can verify it is consistently burning oil. This is the only way to get it covered under warranty.

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post #7 of 74 (permalink) Old 12-26-2016, 09:05 PM Thread Starter
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I also let my motor warm up properly EVERY time I drive. I have owned BMW's which are absurdly finicky when it comes to warming them up.
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'15 PSG 6MT No Hole/Tire - 1 of 6
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post #8 of 74 (permalink) Old 12-26-2016, 09:07 PM
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Some have reported service not filling to specification, not accounting for oil cooler...!
You can hope it's something that simple. Hope not damaged and you might want to get
oil tested for excessive metals.
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post #9 of 74 (permalink) Old 12-26-2016, 09:10 PM
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Step one: Replace the bent dipstick.

Until you do that we're just pissing in the wind.
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post #10 of 74 (permalink) Old 12-26-2016, 09:47 PM
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Interested in outcome. GL
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