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My car is a Chevrolet Traverse 2021. Although there are no problems with the engine or oil lines, the oil level drops by a litre and a half to two litres over an unspecified period of time, ranging from one to two months, for no known reason. Is there an explanation for this?
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Obviously the oil is going somewhere, but without doing some troubleshooting there's no way to know the correct diagnosis.
Typically with an oil loss you can figure it's either leaking or ending up somewhere else in the engine.
If it's leaking, sooner or later you'll find a puddle of oil under the vehicle. The location of the oil spot would give you your first clue about where the oil is coming from, but it can be tricky to trace it back to its source. Leaks usually occur as a result of a failed gasket or seal; for gaskets the valve cover and oil pan are common causes, but there can be many other sources such as an oil pump gasket, PCV gasket, etc. Failed seals can include the camshaft, rear main, crankshaft, variable valve timing, distributor and any number of sensors.
On the other hand, if there is no oil found beneath the car, it could be ending up in either the cooling system or the exhaust, before or after it's burned in the combustion chamber. A failed head gasket is the most common cause for losing oil, and depending on exactly where it fails it can allow oil to escape into the cooling system or else it can get into the intake or exhaust. If you have black smoke coming out of the tailpipe it could be from oil getting into the piston and being burned. When oil gets into the antifreeze it will generally turn it brown and opaque rather than, for instance, green and transparent.
Of course, with age things like valve stem seals and piston rings can fail, allowing oil past them and into the piston, but on a vehicle as new as yours, that's unlikely although not impossible.
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crwdns2944067:02crwdne2944067:0
@onr8lb9lp9j3csz how many mile have you driven your Traverse in that time frame? First thing I would do is to check for leaks on the ground when you park it. If all of that checks ok and there are no leaks etc., pull the sparkplugs. Take a look at the spark plug faces. It will tell you how your Traverse burns its fuel. It will also tell you if your engine is burning its fuel.
How many miles are on your engine, what engine size is your engine and what type of transmission (AT/MT) does it have?
crwdns2934271:0crwdnd2934271:0 oldturkey03 crwdne2934271:0
25500 miles, engine size is 3600 with AT transmission
crwdns2934271:0crwdnd2934271:0 haider.qassim crwdne2934271:0