Oil disappearing?
 

I have a 2008 2 door Sahara. Noticed back in September that the oil was down and continued to add and check and it's still keeps going down. Local dealer couldn't figure out what was wrong but they gave me a sheet to track how much oil they add every time I bring it in and then they send it off to a " service rep"? The sheet was filled last week and sent off, I'm just wondering if anyone has gone through this process before and if so, what came of it?

Re: Oil disappearing?
 

If there isn't any oil on the undercarriage or engine compartment it sounds like its leaking past the valve seals which shouldn't be normal for a 4 year old engine unless your driving it like a Ferrari.
Diesel engines have a "burn down" but you shouldn't have that with a gas engine.

Re: Oil disappearing?
 

I have a 2007 and I've heard of a new word..... oil consumption. It is happening to mine too. 1 litre every 2000kms. I've heard worse than mine. I just added some oil additive and will see what that does.

Re: Oil disappearing?
 

Using 5W30 will also help, if not cure the problem.. However, if you still have warranty have the dealer track and fix...

Re: Oil disappearing?
 

After couple months of oil consumption check the dealer just changed my engine on my still under warranty 07 X because of bad oil consumption, 1L/1000km.
I'm very relieved now. They gave me no hassle at all.....were super cooperative.
So far so good. There are lots of threads on 3.8 burning oil.

Re: Oil disappearing?
 

Not unheard of for the 3.8. Try 10w30 in the summer, 5w30 for winter.
The 5w20 was designed to increase mileage for emissions and MPG specs but sucks in my opinion. Lots of guys run the 10w30 and see a difference right away.
DO NOT add any additives unless you want to void your warranty.
If you blow your engine and Chrysler does an analysis your screwed 6 ways from sunday!

Re: Oil disappearing?
 

well know issue google "jk oil" , it is an issue with that year and 2007. tons of talk about it, not sure if a remedy has ever come about.

Re: Oil disappearing?
 

I have an 08 Rubi, 6 speed with 60k on it. It is using 1 litre per 1000 kms right now. My dealer has me on an "oil watch" program. Basically after 3 times adding oil they talk to Dodge and get approval to redo the valve stem seals and rings.

Talking to the technician, he said there was a big batch of 3.8's that had really bad rings, etc. This is not an uncommon problem - just need a rebuild and supposedly it's solved.

Re: Oil disappearing?
 

Ongoing problem with the 3.8. Lots of threads, some dealers swap out the engines, some don't. I'm on an oil watch, but it only seems to be about one quart per 5000 km, so I'm not sweating it too much coz the engine runs very smooth. Some threads say that the problem is with engines built in Toledo. Lots of threads to read.

Re: Oil disappearing?
 

Oil is disappearing in my 08 X, so off to the dealer she went. Dealer changed oil and pcv valve, and I was told to return in 800 to 1000 kms for a check up. Hopefully it was just the PCV valve.

Re: Oil disappearing?
 

wow i just posted about an hour ago in another thread ......
2010 wrangler Sahara with 3.8, manual trans... about 2 months ago i noticed when changing my oil that it had hardly any oil in the engine... and i mean hardly any..... about a quart drained.... I changed the filter and added my new Oil and now check every 2 weeks, low and behold last night i noticed i am down over a quart.... I topped her off.....
seems like the 3.8 likes to drink her up...

have put less than 5 k on her since last change....
ok so what is my next step........


feedback would be nice please....
are there things i should check before contacting my dealer... my dealer is a prick , right up front, so i need to do my homework before i go there or we get screwed around....

Re: Oil disappearing?
 

As mentioned in a prev post, use 5w30 in winter, 10w30 in summer. Synthetic helps. IF your dealer is a prick, change dealers. You are not OBLIGED to go to them. Des Sources is where i go and don't have any problems with them. Most dealers are good but there are always a few bad apples in the mix. Personally, my engine burns maybe 1 litre per 5000km so i guess i'm lucky OR what I'm doing works. I don't drive it like a Ferrari but I'm not driving miss Daisy either.

Re: Oil disappearing?
 

thanks for the answer, as for the oil version, i would rather do as the manufacturer suggests as not to give them reasons to NOT honor warranty if there is a real problem.... we have to remember that dealers are in the bushiness of making money, not for keeping someone that bought a car happy it is in their best interest to NOT spend money....... i don't kid myself that a dealer is there to make sure I am a happy owner of a car i bought.... so changing oil or using additives may be a good thing for the dealers perspective.... and may work... but when it comes to OUR interests....."warranties" we have to suck it up and follow the "rules" until the item is no longer under warranty,,, then its a free for all :)

So i just want to follow the manufacturers process, and if any one knows what steps should be followed i would gladly listen,,,, by the way one the warranty expires... Oh ya i am using a diff oil.... :)

Re: Oil disappearing?
 

As others have noted....COMMON ISSUE on the 3.8L. Google 'oil sucking 3.8L' you will have more then a afternoon's reading on the topic.

Yes a thicker weight oil has helped some, as PCV replacement.

HOWEVER, the story is some 3.8L (mostly 07 and 08's) had piston rings installed incorrectly from a Mexico assembly plant.

My 08 was buring 450ml of oil for every 750KM. I worked with my dealer on a oil consumption test(s), PCV replacement.....was patient, and they did work on my motor under warranty, and I know run 5W20 (dealer dino grade) with no issues.

Do you homework, print of threads on the issue, and work with your dealer for warranty coverage....patience but firm, don't let them get a way pushing you off and saying it's normal.

Best of luck, keep us posted!

Re: Oil disappearing?
 

Been though 3 "oil watch" programs now. My consumption is 1 litre per 1900 kms. According to Chrysler, the consumption needs to be 1 litre per 1600 kms before they will do anything about it. Thus, my consumption is deemed "normal". Not sure how this can be deemed normal......

Re: Oil disappearing?
 

As an Owner of 6-speed manual 2011 JKU Sahara with 80K kms,
suffering from pinging and some oil burning.

From what I have gathered on the web and from mechanics outside of dodge.
The theory is that the oil gets too thin with wear, gets past the rings and burns.
Creating a smaller combustion chamber from the carbon deposits, causing predetonation below 2500 rpms. I am told the ping sensor does not kick in until a higher RPM.
The rings themselves can get carbed up, causing the situation to get worse.

Seafoam has become my friend,
I treated my gastank and it stopped the pinging right away, but would return if I didn't use High octane.

And after 3 treatments, and keeping the jeep out of 6th below 110kms seems to have resolved the issue completely.
I am waiting until my warranty is up before changing engine oil. for now synthetic 5w20 is what I use...

This has been my experience,
There are lots of different ways to use Seafoam, procedures on their website, test at your own risk.

My dealer won't help at all...