My first ever oil change and takeaways

Fast-n-Furious

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Based on the information from the above discussions, I did the first ever oil change today and wanted to share my experience:
  • I bought 5 cases (6 quarts/case) of Pennzoil so I can do 4 times (7.5 quarts/each change) oil change in two years. And they expire by June 2024.
  • Changed at 3399 miles, 44% oil life. I didn't measure, but no noticeable oil consumption prior to the change, oil level was still above the top level of dipstick.
  • The drain plug on the steel oil pan is perfect fit to the 1/2 socket. I tried 13mm first but a bit loose.
  • I thought I would be able to hand unscrew the old filter or use a flathead, no! Need the 76mm/14 flute wrench.
  • The MO-899 filter fits perfectly (cap wrench 93mm/15 flute), I had to tight it couple times after installation to stop a tiny leak (one small drop in an hour).
  • The rubber ring on MO-899 is only 1 or 2mm larger than the one on MO-399 if you compare closely.
  • Using couple of towels to catch the dripping oil when unscrewing (slowly turn) the old filter minimizes the mess.
  • The 392 manual says the 6.4L engine has a capacity of 7.5 quarts. When I refilled 6 quarts, it didn't even touch the tip of the dipstick. After I poured the 7th bottle, oil level reached to the top of dipstick and I stopped from there without adding the half quart. (Update: refilled total 7 quarts 12oz to get full mark, maybe a bit more than that)
  • After done, I fired up the engine for a few minutes and reset the oil life. I put one paper bag under the oil drain plug and another one under the filter on the garage floor, waiting for a night if no leak, I'm all good.
  • For record keeping, I organized the pictures and also added a maintenance record on mopar.com
I took my time and even had a conference call during the process. Knowing I took good care of my 392 gives me peace of mind.

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Did you change the oil warm? How many months since you bought it?
 
You get 3 free oil changes and tire rotations, why not use them?
 
You get 3 free oil changes and tire rotations, why not use them?
I would bet most people on this forum opt NOT to have dealer maintain their jeep. For me - nothing but recalls and warranty work.
 
Did you change the oil warm? How many months since you bought it?
Yup, popped the hood 30 minutes after driving 30 miles. I could tell the drained oil was pretty warm.
From my signature you can tell it's only less than 3 months. And the drained oil is pretty dark/brown.
 
You get 3 free oil changes and tire rotations, why not use them?
That was my debate even before I took ownership. The purchase dealer is a small local one with very good reputation. But I still feel the need to DIY. It's one thing that I've never done before with my other cars. This 392 is tall enough to crawl under and I feel it's time. Plus I enjoyed the research and planning as well as the actual hands-on experience.
 
I would bet most people on this forum opt NOT to have dealer maintain their jeep. For me - nothing but recalls and warranty work.
Spot on! Even for recall, one time the Audi dealer messed up the install of a 4G device by installing it inside the storage cubby, which totally made that space useless. And I had to go back to have them get rid of that shit. Waste of my time.
This time I wanted to take good care of my 392, starting with oil change. I plan to still visit the dealer for annual safety inspection though.
 
I do
I would bet most people on this forum opt NOT to have dealer maintain their jeep. For me - nothing but recalls and warranty work.
I have a good local dealer with a quality service dept, I wait and work from a quiet cubicle and have a fresh sandwich or home made dessert and a soda. Everything's always been done correctly in a timely manner. I work on my watercraft and off-road vehicles but I'll have them work on my trucks especially if it's complimentary.
 
I do

I have a good local dealer with a quality service dept, I wait and work from a quiet cubicle and have a fresh sandwich or home made dessert and a soda. Everything's always been done correctly in a timely manner. I work on my watercraft and off-road vehicles but I'll have them work on my trucks especially if it's complimentary.
Understood and I was like that in the past years too. Had couple of small bad experiences but nothing major.

This 392 is the most expensive vehicle I’ve ever bought and I just love it. That’s the motivation. I’ve done many projects around the house, working on the Jeep points me to a new direction. I’m even planing on doing the tire rotation myself.
 
Right after I reset the oil life, checked oil pressure, it was 57 psi.

The next day morning no leak, and after driving 10 miles, checked again the oil pressure at 70 mph (55) and idle (30).

Also discovered one tiny bit of oil accumulation hanging at the edge of filter. I figured it could be from the surrounding of the rubber ring when I oiled it and as the oil gets oil the filter also becomes hot. Will have to keep monitoring until no sigh of any accumulation 🤞
 

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Discovered something today, I guess the steel pan is slightly larger capacity. I've only refilled 7 quarts on my 2022 392 though and the oil level reached the top of dipstick. I do have a bottle for top off at any time.

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I have noticed that change also but could not determine which one was newer, this was before 22 was out. My 21 has the steel oil pan but the manual that came with it said 7.0 quarts. 7.5 is correct though.
 
I have noticed that change also but could not determine which one was newer, this was before 22 was out. My 21 has the steel oil pan but the manual that came with it said 7.0 quarts. 7.5 is correct though.
From what I can tell, the steel pan takes 7.5 quarts. I checked the dipstick a few times prior to the 1st oil change, and they all above the top mark. Right now the oil level is at the top mark but not above much. So I guess if I refill the last half quart and it should be fine too. But I'll monitor and decide. That's also why I bought 30 quarts total to be prepared for 4 times of change.
 
Update: no any sign of leaking after two days. Checked dipstick this evening 15 minutes after parked and oil level was only 3/4 of the full mark. Added another 12 oz to get a full mark.

This does confirm the 7.5 quarts capacity on the 2022 MY steel oil pan.

So now I have a half bottle left for next oil change, exactly as I had originally planned😎.
 
I already hate the dealers in my area for having no deal on sales, now I don't want them to work on my vehicle lol. Even my hometown local GMC dealer did crap work on my truck recently, very disappointed in the quality of the youngsters going in to the trades. I don't know if it is just bad work ethics, or training having more emphasis on pronouns and such or what, but it is annoying.
 
I already hate the dealers in my area for having no deal on sales, now I don't want them to work on my vehicle lol. Even my hometown local GMC dealer did crap work on my truck recently, very disappointed in the quality of the youngsters going in to the trades. I don't know if it is just bad work ethics, or training having more emphasis on pronouns and such or what, but it is annoying.
Lack of work ethic is everywhere, sadly these days. Young guys that I mentor at work don’t show much of work ethics, and some of them don’t even respect the ones who do.

Getting services done at the dealer is simply risky. Missing oil refill cap, non-rotated tires, and stupidly addressed recalls had happened to me from various dealers.

Doing my own oil change just gives me peace of mind and I know exactly what being used and what happened. The tools and experience that I collected and gained are just my assets.

I’m planning about changing the transfer case and diff oil as next service.
 
Other than oil dripping on the front suspension parts, changing the oil in a Wrangler is too easy to turn it over to a dealer who may or may not take all the correct steps in servicing a vehicle. I think changing my own oil also helps in discovering any issues that might be present on the underside that might otherwise go unnoticed. I just passed 1000 miles and intend to do my first one sometime between now and 1,500 miles using Penzoil and a Wix 57899XP oil filter.
 

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@Fast&Furious where did you buy Pennzoil? I guess you must have scored a pretty nice deal since you've purchased 30qts?
 
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