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Old 07-01-2016, 04:51 PM   #1 (permalink)
Huntindog
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Low oil pressure

Two weeks ago I had my 2011 in the dealership. It had emission issues. They replaced a couple of sensors and either replace or reflashed the engine controller.
It ran great. Better than normal MPGs, and it hasn't regened yet.


Yesterday @3am I started it to go to work. The low oil pressure, stop engine message appeared. I shut it off, and checked the oil. Nothing on the dipstick.
So with no more time, I drove another vehicle to work.
After work I pull the dipstick... It shows right in the middle of the hash marks or 1/2 qt low. I figure that the dry dipstick in the AM may have been from just having it running. I have never checked it that way before.


So I have it towed in to the dealer. They just called. They say it is two qts low, and want to do an oil change...


It has been 3000 miles since the last change, and it has never used any perceptible amount of oil between changes. I go by the OLM.


So I want to why thay read 2 qts low, and I 1/2 qt low.... And in either case, where did it go? Also, any time it is in the dealer, they always check a bunch of things, oil level being one of them.... So it was good by them two weeks ago, and now they say it is two qts. low????


Thoughts? Comments?

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Old 07-01-2016, 04:55 PM   #2 (permalink)
Huntindog
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Oh yeah, no leaks

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Old 07-01-2016, 11:00 PM   #3 (permalink)
rob1
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I'm curious as to what they end up telling you, that's a lot of oil to be missing in that short time without a major leak somewhere.
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Old 07-01-2016, 11:37 PM   #4 (permalink)
IGO1320
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You sure it was full after the oil change?
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Old 07-02-2016, 12:09 AM   #5 (permalink)
ktmrfs
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half way between the marks is ONE quart low, NOT 1/2 Quart low. hash marks covers TWO quarts of oil, so you were down 1 quart when you checked it.
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Old 07-02-2016, 03:48 AM   #6 (permalink)
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If the hash marks cover two qts. then the dealer and I are closer together in our readings... I've been driving Dmaxs since 2001 and never seen a reading other than full. But is is still a lot of oil to be missing.
I am sure that it was full on the last change. In fact it has been in the service dept. twice in the last month and they checked it as part of their inspection. It passed both times, recently a couple of weeks ago.


As of now, they are doing a filter change and oil top off. Theu want to keep it a few days to observe it. I believe they are suspecting the filter as it is not a AC Delco. I am skeptical of this line of thinking as I do not see how a filter can make oil disappear....
The filter is the STP extra life. It is not what I consider to be a bargain filter. It cost me about twice what I could have had the AC Delco one for.
So if that turns out to be a problem... STP and I are gonna talk.
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Last edited by Huntindog; 07-02-2016 at 03:49 AM.
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Old 07-02-2016, 11:03 AM   #7 (permalink)
ktmrfs
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Quote:
Originally Posted by Huntindog View Post
If the hash marks cover two qts. then the dealer and I are closer together in our readings... I've been driving Dmaxs since 2001 and never seen a reading other than full. But is is still a lot of oil to be missing.
I am sure that it was full on the last change. In fact it has been in the service dept. twice in the last month and they checked it as part of their inspection. It passed both times, recently a couple of weeks ago.


As of now, they are doing a filter change and oil top off. Theu want to keep it a few days to observe it. I believe they are suspecting the filter as it is not a AC Delco. I am skeptical of this line of thinking as I do not see how a filter can make oil disappear....
The filter is the STP extra life. It is not what I consider to be a bargain filter. It cost me about twice what I could have had the AC Delco one for.
So if that turns out to be a problem... STP and I are gonna talk.
the warning you got was likely "low oil LEVEL" not low oil pressure. it goes off somewhere below the "add" line on the dipstick.

And a common way to loose oil is to end up with the old oil filter gasket stuck to the housing and when you put on a new filter, well, it often then leaks. but you'd likely see oil on the ground and on the undercarriage.
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Old 07-02-2016, 03:44 PM   #8 (permalink)
Huntindog
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Quote:
Originally Posted by ktmrfs View Post
the warning you got was likely "low oil LEVEL" not low oil pressure. it goes off somewhere below the "add" line on the dipstick.

And a common way to loose oil is to end up with the old oil filter gasket stuck to the housing and when you put on a new filter, well, it often then leaks. but you'd likely see oil on the ground and on the undercarriage.

No, the warning said 'Low oil pressure STOP ENGINE"


The dealer I think is suspecting the oil filter... But that filter has been on for 3000 miles and 3 months.. And the oil disappeared in the last two weeks.
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Old 07-02-2016, 04:23 PM   #9 (permalink)
sfcjones
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I don't know if our engines require the check valves in the oil filters or not but a after market filter may be suspect...
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