Dealer overfilled oil

[BigRed2020]

The 3.6 has varying levels depending on make and model… my ‘20 Gladiator takes (manual says 5 quarts) just under 5 quarts and my wife’s GC with the 3.6 takes almost 6 quarts (manual says 5.9q)
When I bought my Gladiator used I changed the oil within the first month of ownership but did notice that my oil was about 1/2-3/4 over filled… I was not happy and the dealer had no answers. On the flip side since I do my own oil changes the level always stays where i put it…
Hope this helps?

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[ShadowsPapa]

The 3.6 has varying levels depending on make and model… my ‘20 Gladiator takes (manual says 5 quarts) just under 5 quarts and my wife’s GC with the 3.6 takes almost 6 quarts (manual says 5.9q)
When I bought my Gladiator used I changed the oil within the first month of ownership but did notice that my oil was about 1/2-3/4 over filled… I was not happy and the dealer had no answers. On the flip side since I do my own oil changes the level always stays where i put it…
Hope this helps?

Old news.

I've found on both of my JTs that when there's the proper 5 quarts in, it reads at the very top of the pot metal part and just onto the twisted wire of the stick. It doesn't read right at the top of the notch on the dipstick end. So if it's up onto the wire part - it's pretty much right.
As also discussed - a bit over, even a quart over, won't hurt a thing. Not a good habit, but not an engine killer either.
Both of mine always ended up with the oil above that bottom piece - that's checking after sitting several hours.
If I check it maybe an hour after driving it, it's down to where it's not on the wire so some is taking a long time to drain back.
People get too concerned about the level not being at some exact mark.

Bottom line - dealers were so used to Jeep 3.6 taking 6 quarts, it was more muscle memory than anything. Hey, a 3.6, I know - those take 6 quarts.
Jeep surprised 'em with the JT.
That means thousands of these were running around for months with 6 quarts of oil in them.

I looked at the specs online while researching the 2024 models and it says something like 5.7 quarts - so it must be the lines and cooler and so on hold over a pint of oil.

 

[BigRed2020]

Old news.

I've found on both of my JTs that when there's the proper 5 quarts in, it reads at the very top of the pot metal part and just onto the twisted wire of the stick. It doesn't read right at the top of the notch on the dipstick end. So if it's up onto the wire part - it's pretty much right.
As also discussed - a bit over, even a quart over, won't hurt a thing. Not a good habit, but not an engine killer either.
Both of mine always ended up with the oil above that bottom piece - that's checking after sitting several hours.
If I check it maybe an hour after driving it, it's down to where it's not on the wire so some is taking a long time to drain back.
People get too concerned about the level not being at some exact mark.

Bottom line - dealers were so used to Jeep 3.6 taking 6 quarts, it was more muscle memory than anything. Hey, a 3.6, I know - those take 6 quarts.
Jeep surprised 'em with the JT.
That means thousands of these were running around for months with 6 quarts of oil in them.

I looked at the specs online while researching the 2024 models and it says something like 5.7 quarts - so it must be the lines and cooler and so on hold over a pint of oil.

Well that’s good to know, only took 5 years to figure that out… lol. But seriously, why so much variance between all the 3.6s?
We used to have a 2012 Grand Caravan with the 3.6 and that was just over 6 quarts in the middle of the hash marks… just find it soooo weird. Thanks for your feedback, I always enjoy learning more about jeeps!!
Happy wrenching!

 

[ShadowsPapa]

Well that’s good to know, only took 5 years to figure that out… lol. But seriously, why so much variance between all the 3.6s?
We used to have a 2012 Grand Caravan with the 3.6 and that was just over 6 quarts in the middle of the hash marks… just find it soooo weird. Thanks for your feedback, I always enjoy learning more about jeeps!!
Happy wrenching!

You should see the different pans for the 258 and 4.0......... fitment in the various vehicle configurations.
I can show 3 different pan variations - one is to clear the front differential on the Eagle.

For the 3.6..............
Solid axles take more space, engine has to clear.
Maybe they figure out - it's not necessary as well.
Pan materials and other parts have changed as well.

 

[DickensCPA]

The older 3.6 required 6 qts.

The newer 3.6 requires 5 qts.

Some dealers either didn't get the memo or ignored it.

I know it sounds cliche, but my Dad always said, "learn to take care of your crap because no one cares about your crap like you do."

I traded my JT back in for a JKU but same principal and the reason I quoted your post - dealer didn't get the memo. My thermostat was staying open and everything seemed fine except I got a CEL and the computer said it didn't reach operating temp "quick enough" although I had good heat, etc.

Anyway the thermostat was covered under warranty, along with a fried head unit and I just happened to show up when they were about to put the wrong Mopar coolant in my Jeep. I think it was 2013 it changed over to OAT(?)

Since 2000 someone else has changed the oil in my vehicle twice. I took advantage of the freebie at the dealership in like March 2022 on the JT, no issues. I had to use Jiffy Lube 9/15/16 because it was corporate tax deadline day and I didn't have time. Jiffy Lube put trans fluid instead of oil. They wound up paying for a new engine and it was never the same. That was on a Ram 1500 that was a great truck.

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