Jeep Renegade Forum banner

101 - 120 of 144 Posts

·
Registered
Joined
·
27 Posts
I have an '18 Trailhawk with the 2.4. Just hit 10k so I was set for my second oil change. Going around a turn one night last week, I got the Low Oil Pressure notification that quickly went away once I straightened out. Upon checking the oil, the stick was barely reading anything. I was 3 quarts low.

I just got back from dropping it off at the dealer for an oil change and I mentioned the low oil and he told me "off the record" (of course) that the 2.4L Tigershark engine used in the Renegade and the Compass is made of a soft aluminum that is very porous. There isn't an oil leak and the engine isn't burning oil, rather the engine is 'absorbing' the oil. The oil consumption will trail off around 15k miles.

I'm not a mechanic, but I've also never reached for a soft aluminum sponge to clean up any spills around the house. So this is either insight, or comedic relief. I'll be keeping an eye on my levels from now on.
 

·
Registered
Joined
·
300 Posts
I have an '18 Trailhawk with the 2.4. Just hit 10k so I was set for my second oil change. Going around a turn one night last week, I got the Low Oil Pressure notification that quickly went away once I straightened out. Upon checking the oil, the stick was barely reading anything. I was 3 quarts low.

I just got back from dropping it off at the dealer for an oil change and I mentioned the low oil and he told me "off the record" (of course) that the 2.4L Tigershark engine used in the Renegade and the Compass is made of a soft aluminum that is very porous. There isn't an oil leak and the engine isn't burning oil, rather the engine is 'absorbing' the oil. The oil consumption will trail off around 15k miles.

I'm not a mechanic, but I've also never reached for a soft aluminum sponge to clean up any spills around the house. So this is either insight, or comedic relief. I'll be keeping an eye on my levels from now on.
The issue with oil consumption has been spoken of, and documented since 2014 when the first Renegades were delivered to customers. It is a fact that these engines drink an amount of oil. The oil is very thin in newer cars, and some engines tend to use oil because of that. My theory is that once one of these engines gets a quart or more low, the oil gets hotter and thinner, making the issue even more prominent. That is to say that that the lower the oil, the faster it goes away. I'm hesitant on saying that it's being burned because there would be an equal amount of catalytic converter complaints/replacements, and that's not happening. That being said, I don't know where the oil is going, since there are very few complaints of oil leaks.
 

·
Registered
Joined
·
183 Posts
I have an '18 Trailhawk with the 2.4. Just hit 10k so I was set for my second oil change. Going around a turn one night last week, I got the Low Oil Pressure notification that quickly went away once I straightened out. Upon checking the oil, the stick was barely reading anything. I was 3 quarts low.

I just got back from dropping it off at the dealer for an oil change and I mentioned the low oil and he told me "off the record" (of course) that the 2.4L Tigershark engine used in the Renegade and the Compass is made of a soft aluminum that is very porous. There isn't an oil leak and the engine isn't burning oil, rather the engine is 'absorbing' the oil. The oil consumption will trail off around 15k miles.

I'm not a mechanic, but I've also never reached for a soft aluminum sponge to clean up any spills around the house. So this is either insight, or comedic relief. I'll be keeping an eye on my levels from now on.
I have a bridge to sell you. ;)

Yes, metal/aluminum will absorb a SMALL amount of oil due to it's purosity. To absorb quarts of oil is insane, the engine block would be double it's size with 3 quarts.
 

·
Registered
Joined
·
567 Posts
I hate to be one of those "I don't have that problem." people, but I feel it worth mentioning (for the benefit of my resale value if for no other reason) that this is not a problem with all of these engines. My 2015 TH has 23K miles and has never needed oil added between changes. Because I read this forum daily, I check my oil (and radiator fan) often and have never seen the level move.

For what it's worth, I almost always check my oil level when the engine is stone cold. The only time I check it warm (per the instructions) is right after I change it. And honestly - I've seen virtually no difference of the level on my dipstick whichever method I use. When I change the oil, I get it close to full then warm it up and top it off to the top of the hash marks. I just checked it this morning after sitting for a couple of days (as I started this reply), and the level is right at the top of the hash marks. It's been months and a couple thousand miles since my last oil change.

BTW, I still carry a quart of oil in back (along side my matching spare tire).>:D
 

·
Registered
Joined
·
132 Posts
i raced fords for 30 years, did all my own work, and i have never heard so much BS on this oil problem, flimsy piston rings, oil absorbing engine blocks, bad valve guides. damn jeeps have to be "burning" oil, BUT i hear of no "cat" problems or exhaust smoke. i think 0-20 oil is way to thin for these engines and burns off to cleanly. has anyone tried a 10-30 blend, dumb question because that would have been mentioned on this site by now if it made a difference
 

·
Registered
Joined
·
233 Posts
i raced fords for 30 years, did all my own work, and i have never heard so much BS on this oil problem, flimsy piston rings, oil absorbing engine blocks, bad valve guides. damn jeeps have to be "burning" oil, BUT i hear of no "cat" problems or exhaust smoke. i think 0-20 oil is way to thin for these engines and burns off to cleanly. has anyone tried a 10-30 blend, dumb question because that would have been mentioned on this site by now if it made a difference
As far as I know, I don't think anyone has done so, but I do agree that maybe the 0w-20 oil may be too thin. I have also heard that this engine is designed for the thin oil and that thicker oil may cause problems. I am not convinced. I'll check the manual to see if it specs for thicker oil in warmer climates.
 

·
Registered
Joined
·
10 Posts
My oil on my 2015 Jeep Renegade Latitude burns extremely fast using the Mobile 1 0W-20 Fully Synthetic. At one point I even was using the Mobile 1 OW-20 Fully Synthetic Extended Performance just to see if it would make any difference but did not. I have to ensure I change this vehicles oil every 3k otherwise when I check the dipstick, it will be a half/quart less within the 3k range. Would anyone recommend a different brand oil than Mobil 1 that may last better with the Renegade? Thanks.
 

·
Registered
Joined
·
132 Posts
i used mobil 1 the first time it was sold, up until i bought the jeep and they push Pennzoil. when mobil 1 first came out they would guarantee your engine if it failed due to the oil. needed that coverage, they did not specify you could not claim damage if the car was raced. NEVER had oil failure. i think any quality 0-20 synthetic oil will work
 

·
Registered
Joined
·
26 Posts
I had an oil consumption test done last December. It showed I was using excessive oil. I have a 2017 with the 2.4 Multi-Air.

They said they were sending the problem to "engineering".

After not hearing back for a long time, I stopped in last week. They are ordering a new engine for me. The rep said that since March, the dealer can make that new engine determination without going up the line.

There's a back order on the engines. I don't know what makes one engine use more oil than another. Sloppy tolerances?
 

·
Registered
Joined
·
68 Posts
I had an oil consumption test done last December. It showed I was using excessive oil. I have a 2017 with the 2.4 Multi-Air.

They said they were sending the problem to "engineering".

After not hearing back for a long time, I stopped in last week. They are ordering a new engine for me. The rep said that since March, the dealer can make that new engine determination without going up the line.

There's a back order on the engines. I don't know what makes one engine use more oil than another. Sloppy tolerances?
Mine is being replaced on the 13th. They did not indicate that there was any back ordered. I completed the consumption test a week and a half ago. My only concern is that they are only replacing the short block (main block with pistons and crank) but I read on another thread they the valve guides should be looked at as well. I am going to bring this up to the dealership.
 

·
Registered
Joined
·
132 Posts
0-20 oil is not going to sit in the upper engine when shut off. it is hot and will drop into the oil pan quite quickly. there is no reason for oil to sit in the heads when shut off, unless you are using non synthetic oil that can foul drains when not changed properly--of course this problem could take a few years to happen
i am sorry i raced fords for thirty years, as far as checking oil 5-10 min. after shut down is BS. cold morning checks will give proper readings, giving the engine oil time to drain into the pan

HAS anyone asked WHY they are replacing the short block??.basically a short block is crank shaft bearings and pistons/rings and "new" block. so that is telling me that they must be updating the pistons and rings (that is where the oil will burn if the rings do not wipe the cylinders properly)
i did a compression on the cylinders and all were within specs when i was burning oil
i went to high mileage pennzoil which is supposed to recondition valve guides just checked oil and it sits right on the "full" mark. that is 1000 with no lose. looks like my problem was the seals around the valve stems
good luck with your "new" short block. there can be so many problems when the engine block is replaced, air leaks, vacuum leaks, trans leak, if they drop the trans. to pull the old block
just hope you get a good mechanic working on your ride
 

·
Registered
Joined
·
233 Posts
0-20 oil is not going to sit in the upper engine when shut off. it is hot and will drop into the oil pan quite quickly. there is no reason for oil to sit in the heads when shut off, unless you are using non synthetic oil that can foul drains when not changed properly--of course this problem could take a few years to happen
i am sorry i raced fords for thirty years, as far as checking oil 5-10 min. after shut down is BS. cold morning checks will give proper readings, giving the engine oil time to drain into the pan

HAS anyone asked WHY they are replacing the short block??.basically a short block is crank shaft bearings and pistons/rings and "new" block. so that is telling me that they must be updating the pistons and rings (that is where the oil will burn if the rings do not wipe the cylinders properly)
i did a compression on the cylinders and all were within specs when i was burning oil
i went to high mileage pennzoil which is supposed to recondition valve guides just checked oil and it sits right on the "full" mark. that is 1000 with no lose. looks like my problem was the seals around the valve stems
good luck with your "new" short block. there can be so many problems when the engine block is replaced, air leaks, vacuum leaks, trans leak, if they drop the trans. to pull the old block
just hope you get a good mechanic working on your ride
Give us a 5,000 mile update. I would love to know if the problem is minimized by then.
 

·
Registered
Joined
·
107 Posts
i raced fords for 30 years, did all my own work, and i have never heard so much BS on this oil problem, flimsy piston rings, oil absorbing engine blocks, bad valve guides. damn jeeps have to be "burning" oil, BUT i hear of no "cat" problems or exhaust smoke. i think 0-20 oil is way to thin for these engines and burns off to cleanly. has anyone tried a 10-30 blend, dumb question because that would have been mentioned on this site by now if it made a difference
I run 5-20 with Lucas oil additive and I get 5 thousand miles before lost. But run the Lucas high mileage non oil additive. It works with synthetic and non synthetic oils
 

·
Registered
Joined
·
481 Posts
0-20 oil is not going to sit in the upper engine when shut off. it is hot and will drop into the oil pan quite quickly. there is no reason for oil to sit in the heads when shut off, unless you are using non synthetic oil that can foul drains when not changed properly--of course this problem could take a few years to happen
i am sorry i raced fords for thirty years, as far as checking oil 5-10 min. after shut down is BS. cold morning checks will give proper readings, giving the engine oil time to drain into the pan.
Ah, someone with old school thinking like me !!

Since we are both sitting on the front porch in our rockers yelling at kids to get off our lawns, let me tell you what I did...

When I first got my Jeep and went out in the morning to check my oil, I noticed it was low. I did the "ya GOT to be kidding me !!". Then I did what the manual said. Drove it around the block a few times to warm it up, went home, waited 5 minutes, checked again. Right on the full mark.

Defies logic and no one from Jeep or Fiat has ever given a really good reason. Forum members have offered theories and hypothesis, but no hard facts from those that designed this freaky engine.

I still plan to scribe a line on the back of the dipstick for "cold" reading; like automatic tranny's used to have. Yep, Jeep (or Fiat) could've done that for us, but that falls under the topic of "logic" and modern automakers don't follow that anymore.
 

·
Registered
Joined
·
132 Posts
i wonder if the oil pan has a splash plate installed and oil sits on the plate. BUT there is no way a quart of oil can sit on top unless it is cupped some how
i had the same problem with a missing quart of oil and then showing up the next day. it cannot happen, but here is two vehicles that it happened to. i wish my miller lite cans would do the same lol
i have a hard time believing the oil shrinks and expands when hot/cold to the tune of one quart
 

·
Registered
Joined
·
8 Posts
I have an '18 Trailhawk with the 2.4. Just hit 10k so I was set for my second oil change. Going around a turn one night last week, I got the Low Oil Pressure notification that quickly went away once I straightened out. Upon checking the oil, the stick was barely reading anything. I was 3 quarts low.

I just got back from dropping it off at the dealer for an oil change and I mentioned the low oil and he told me "off the record" (of course) that the 2.4L Tigershark engine used in the Renegade and the Compass is made of a soft aluminum that is very porous. There isn't an oil leak and the engine isn't burning oil, rather the engine is 'absorbing' the oil. The oil consumption will trail off around 15k miles.

I'm not a mechanic, but I've also never reached for a soft aluminum sponge to clean up any spills around the house. So this is either insight, or comedic relief. I'll be keeping an eye on my levels from now on.
It looks like all trailhawks are bad, mine is an '18 and my dealership just told me they are going to change the engine because of the oil consumption... not cool.
 
101 - 120 of 144 Posts
Top