This is very well the reason that you have come to this page. But, a low oil level does not necessarily indicate that you are burning oil. It could be leaking out of the engine.
If you normally park your CTS in one place, look under it and see if there is any fluid under the engine. This could indicate that the oil is exiting through the seals, and not through the combustion chamber. If oil is slipping past the valve seals, it can make its way onto the spark plugs.
When this happens your CTS is likely to start running worse and misfiring, as the spark plug will no longer be able to achieve a clean spark. Burning oil has its own smell.
The gap between you cylinder wall and the piston is measured in hundredths of an inch. When they go bad, oil will be allowed into the combustion chamber and there will be blue smoke.
The PCV system takes the pressure from your crankcase and safely relieves it. It sends it back to the intake system to be recycled. Had oil changed and drove less than miles it burned through all the oil. This has happend twice since august of The car has 50k miles on it and has been maintained since it was new. Do you. If there is no signs of external leaks, then it is going through the engine.
Has there been any repair history of oil usage concern with the dealer, while the vehicle was still under warranty? There is a bulletin that involves some checks, and states that if the oil consumption is determined excessive after a consumption test, replace the piston rings and valve stem seals. I will give you the bulletin for reference. Why wasn't this model Cadillac included in the recall when is should have?. For the last year my car has ran badly.
Very rough idle, engine light throwing multiple codes, bad gas mileage, heavy oil consumption, and pulsating throttle while parked and driving.
I've taken it to the dealership and for an entire year they've given me the runaround. On Monday I took it back in to rancho motor company in victorville, California and they finally say it's the timing chain.
The recall warranty voided at miles. Now they refuse to honor the recall. My car is dangerous to drive. The car has unbelievable oil consumption. I was traveling from illinois to iowa to visit my father.
During the first 4 hours, I had to add 4 quarts of oil. Than 20 minutes from our destination, we hear a pop, the car stops running, no brakes and I am doing 70 mph in the left lane with no power steering. I luckily get the car to the right side of the road. Called a tow truck and tow it to a mechanic who tells me I need a new engine. Upon researching any issues with Cts, I find numerous blogs with customers with the same car and issues. Many of who complained to Cadillac. Why has the manufacturer not done anything to correct this, notify customers and prevent any injuries or worst a potential death.
What are they waiting for? Leaking valve cover gaskets resulting in oil on coils, oxygen sensor and risk for oil related fires. The smell of burning oil is prevalent because of oil on hot engine parts.
A consensus opinion appears to be the valve cover gaskets were made from inferior materials. The contact owns a Cadillac Cts. The contact stated that the vehicle consumed oil at an excessive rate of twenty quarts per month. The contact also stated that the check engine light constantly illuminated on the instrument panel. The contact took the vehicle to the dealer and was informed that the vehicle was consuming oil at a normal rate.
There were no oil leaks coming from the vehicle. The dealer suggested performing an oil consumption test, but the test was not performed. The VIN was not available.
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