I'd start with a valve cover gasket along with the O rings, but if were loosing that much oil there certainly would be oil under the car all over the undercovers and probably dripping onto the ground. If burning oil, you wouldn't see any blue smoke because of the converter.

The valve cover gasket, O rings would not be covered under the warrant, at least I don't believe it would be as it would be considered normal maintenance. Get those changed and if still high oil consumption, the dealer may do some tests for excessive oil consumption and if found to be excessive, a new engine may be on the horizon.

 

Thanks for the feedback. There is no oil under the car or in the engine bay, It must be burning. Is it possible that the valve gasket and o rings are causing oil loss? Where would it have gone if it's not visible? I was also thinking maybe the valve seals/pistons. I really don't know what to do because my warranty expires on the 30th. Hyundai extended the engine warranty for 10 more years due to a knock sensor update/recall. Would any of this be covered under that?

 

If you have been using 5w-20 you might try 5w-30 instead

 

I suggest that you take your car to a dealer before June 30. Make sure they record your concern. That way if the cause is determined after June 30 you have proof the fault developed while under warranty. Then Hyundai would be responsible for repairs

 

I actually have an appointment tomorrow morning for something loose in the front end. I never mentioned the oil loss because I wanted to confirm I'm still losing it. I'll show them the valve cover and mention the excessive oil consumption. Hopefully they will document the problem. The appt reminder email only states, customer says something is loose/shaking in the front end.

 

Tell thenm about the oil use, get an oil consumption test going now. That way you dont have to worry about any warranty even though they have been doing oil consumption tests and replacing engines on cars with as much as 178,000 miles on them - well out of warranty.

 

It's almost certainly being burned.
One qt of oil leaked makes a big mess.
We don't know how much oil loss in how many miles.
If it's less than 1 qt in 1000 miles you'll have to live with it.
Check your oil at least every other tank of gas.

 

They will be doing a oil consumption test after they fix the valve gasket and oil pan gasket. For some reason they were both leaking. They also said I will be covered for 10years on the engine since the recent knock sensor campaign. Thanks for all the feedback!