So did you go from 5W-20 to 5W-30 and are you using a full synthetic oil?Our 2015 Sonata SE is consuming lots of oil. So we switched to higher viscosity oil, then today on start up it blew whiteish-blue smoke!! The oil change was only 1100 miles ago. WHAT IS HAPPENING TO MY CAR?!
First, how many miles and is the car still under warranty?WHAT IS HAPPENING TO MY CAR?!
First, how many miles and is the car still under warranty?I’m Not Very Cool;5770445 said:WHAT IS HAPPENING TO MY CAR?!
Blue-ish smoke out tail pipe on start-up (and at idle) can be worn valve seals.
Burning oil will also show up on the spark plug inspection.
How much oil is it loosing over how many miles?
Higher viscosity oil will help a little on oil burning, but that's not the solution, especially if the car's still under warranty.
So far I loose no oil with 5w-20 Syn.
I guess valve seals could be viewed as normal wearable items. Depends on the miles and maintenance. Never hurts to try. Don't always take the first denial from either the service rep or the mechanic. Speak to the factory regional rep.If you are thinking about using warranty to fix this issue for free, good luck.