Oil consumption
Super Moderator
Joined: Jun 2011
Posts: 11,054
Likes: 85
From: Hendersonville, Tennessee
Originally Posted by Mark73
Yah I tried 5w30 and no change that I could tell . And most of my other vehicles went through around a liter or so at the most between oil changes . Always change at 5000 Kms . I'd really just like to know where it's going ? Past rings ? No smoke out tailpipe ? Dealer is changing my cats next week cause they chatter - rattle like crazy . Makes me wonder why ? I'm no mechanic although I've been fixing and servicing my own cars and trucks for 25 years and have a general concept of how engines work. But not sure what's going on here ? And not going drives me crazy!!! Just the way I am have to figure things out and try to fix it , Cheers :-)
JK Junkie
Joined: Jan 2008
Posts: 2,472
Likes: 4
From: Virginia Woods
the honeycomb in his cats have cracked and are rattling internally. Usually a lean engine condition will cause this. You guys try 10W30 dino oil for a couple of changes, you will have little to no consumption and a quieter engine.
JK Newbie
Joined: Nov 2012
Posts: 22
Likes: 0
From: Littleton colorado
I do think he is probably telling you the truth about mopar spec. I am a tech for a Honda dealer and Honda's spec is a quart every 1,000 miles. In my opinion there is an issue if your burning that much oil but that is what the manufacturer says is ok. I think it is to cut down on warranty repairs. They will not cover a repair under power train warranty unless it uses more than that. Hope this is helpful!
Super Moderator
Joined: Jun 2011
Posts: 11,054
Likes: 85
From: Hendersonville, Tennessee
Originally Posted by Jkfamilycrawler
I do think he is probably telling you the truth about mopar spec. I am a tech for a Honda dealer and Honda's spec is a quart every 1,000 miles. In my opinion there is an issue if your burning that much oil but that is what the manufacturer says is ok. I think it is to cut down on warranty repairs. They will not cover a repair under power train warranty unless it uses more than that. Hope this is helpful!
JK Enthusiast
Joined: Apr 2010
Posts: 184
Likes: 0
From: Milton Ontario
Are there any trade offs or issues
with going with a thicker oil?
I have no clue when it comes to this but adding oil every week or so is becoming quite a PITA. specially now that it is getting colder.
I have no clue when it comes to this but adding oil every week or so is becoming quite a PITA. specially now that it is getting colder.
JK Junkie
Joined: Jul 2011
Posts: 2,110
Likes: 0
From: Indianapolis, in
My co-worker had this issue with his 2009 JKU and the dealership ran a dye in his oil so that they could see if it was leaking in the engine anywhere under black light and sure enough it was. They fixed it under warranty.