2014 Grand Cherokee burning oil

[01171980]

Noticed I’m burning about a quart every 4-5k on my 3.6 Pentastar. The engine has 128k with a 60/40 mix of hwy and local driving. It’s been run on 5W20 since 45k. Should I try a thicker oil to see if it slows down consumption or perhaps go with a high mileage 5W20? My understanding is that these engines are not burners so I’m a little concerned. The stealership suggested it may be a head gasket issue which I’m not sure I agree with. Any particular brands of oil or weights that these engines perform well on?

 

[Furious]

By the sounds of it you been doing 7,500-10,000 mile intervals?

Drop your oil change intervals down to 5,000 and go with a high mileage oil.

 

[facility1]

try Valvoline EP full synthetic 5w-30 at 5k as mentioned above,,and good filter,Wix or Fram high end ones

 

[MalibuRam65]

Change that oil

 

[Lubener]

Noticed I’m burning about a quart every 4-5k on my 3.6 Pentastar. The engine has 128k with a 60/40 mix of hwy and local driving. It’s been run on 5W20 since 45k. Should I try a thicker oil to see if it slows down consumption or perhaps go with a high mileage 5W20? My understanding is that these engines are not burners so I’m a little concerned. The stealership suggested it may be a head gasket issue which I’m not sure I agree with. Any particular brands of oil or weights that these engines perform well on?

Check and make sure your PCV system is functioning properly. One quart every 4-5k is not that bad to warrant a major engine repair or rebuild. I would just change the oil/filter at the time you are down a quart and maintain proper oil level.

You can buy a lifetime's worth of make up oil to equate the cost of a rebuild.

 

[demarpaint]

That's nothing to worry about, having said that I would change the PCV if you haven't already done so and use a 0W30 or 5W30 oil in that engine.

 

[MSCH]

every 4000 miles... top it off and keep driving.

 

[atikovi]

Noticed I’m burning about a quart every 4-5k on my 3.6 Pentastar. The engine has 128k with a 60/40 mix of hwy and local driving. It’s been run on 5W20 since 45k. Should I try a thicker oil to see if it slows down consumption or perhaps go with a high mileage 5W20? My understanding is that these engines are not burners so I’m a little concerned. The stealership suggested it may be a head gasket issue which I’m not sure I agree with. Any particular brands of oil or weights that these engines perform well on?

Dude, that's NOT oil burning. People with 12k engines would be thrilled if their engine used such little oil. You're looking for a solution to a problem that doesn't exist. You would have to use a quart every 1000 miles before most manufacturers consider it an oil burner. Don't change the brand or weight, you're doing great.