U may have mis-read the dip stick, either 150 miles ago, now, or both. Virtually impossible for a quart to disappear thru the cylinders without smoke. If u check the dip stick after the motor has been off for several hours and then the next time u check it right after turning the motor off, there will be a substantial difference in the 2 readings. It's always best to check the oil level after the motor has been off for a while, thus allowing the oil time to drain back to the pan for a more accurate oil level reading.

 

You may have hit the nail on the head. I let it sit for hours and the reading is fine but the owners manual says to check with warm oil. I might have been on a slightly uneven surface as well.

But for peace of mind I am going to pull plugs and check compression as I have lost 2 cups of coolant in the last 6 months(saw some dripping from the overflow hose). Cracked heads scare me.

 

The 3.7 takes 6 quarts for an oil change with filter. Do you have the oil changed or do you do it ?

 

I'd suggest monitoring it to ensure you are getting accurate readings. No visible cause and the sudden change leads me to think it was a bad reading.

 

It's either leaking it or burning it. You sure you added six quarts?

 

how many miles on the truck?

 

110k

 

So if the oil readings were different from one time to another, I'll say it again. Now you have to ask yourself if you have overfilled the system by adding oil due to a potential inaccurate initial reading.

 

I already picked up filter and oil going to go home and start from scratch.

 

i lose a 2.5 qts after 4000 miles.. last two oil changes its about 1 quart loss after 2800 miles. then runs like shit til i change the oil. well i mean it runs like shit everyday its a big piece of shit truck honestly.

 

:lol2:

 

Check your oil when the motor is cold and on level ground. This will ensure you get the most accuret reading

 

I agree 100% ^^^^. Yet the owners manual says for an accurate reading check the oil when engine is warm lol. Why would someone let the engine warm up to operating temp to check oil when they think is low. I'll check it as needed GM and it doesn't matter if warm or cold.

 

Hmm I have heard of this problem before. A member down in TX had a similar problem.
Unusual amount of engine oil loss.
He found one side of the valve cover vacuum crank vent was completely clogged with debris.

Have you inspected your tb, vacuum hoses or heavy soot on the exhaust tail pipe?

 

Hey;

I got a used 2012 Canyon from it’s original owner and face a similar oil lost after the first oil change at little over 1k driven miles. Engine is solid at 122 kmiles and was trying to figure out why. Removed the air intake and found a small oil leak, from a approximate 6” by 1/2” inch hose that is attached from the intake resonator to the engine cylinder cover right side. Cleaned everything and the throttle assembly and put everything back. To the hose, since it was in good shape, just affixed both ends with zip ties since it’s near impossible to get clamps at least on the one right below the resonator. Top oil again and will post results after driving the little fun Canyon a couple of hundred miles. Hope it helps around and thanks for your review!!!!

 

oil might be going thru your cylinder little by little without signs of smoke or also check the water on the radiator it might be leaking to your water system. if so change head gasket and refurbish the head and change all gaskets

 

Just a update to the issue. I think it was a combo of misreading the dipstick and oil being thinned out from short cold winter trips and burning off. Once the weather broke it was fine. Then it blew.

 

Not to thread jack but my 2.8l did that too I went in for an oil change I went over like 150mi and the guy told me I didn't have any oil touching the dip stick
It has 93xxxx on it

 

Mine will displace about .5qt every 4000-5000miles

 

I'm having the same problem. I loosing oil like crazy. I mean I just changed it and a week later 5he engine is rattling and it's not even touching the dip stick. I've got a lot of soot coming from the tailpipe. What is causing that ????