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Well-Known Member
- First Name
- E
- Joined
- Oct 7, 2019
- Threads
- 6
- Messages
- 96
- Reaction score
- 126
- Location
- Northern NJ
- Vehicle(s)
- 2020 JLUR
- Thread starter
- #1
I’ve had 2 of my 3 free oil changes conducted at the dealership. Today, I decided to do my own. There are a total of 17,100 miles on it and it’s been mild use highway miles since the last change. The cluster screen indicated 20% life remaining at time of change.
Used a 5qt jug of Penzoil .
All went well until I was transferring the used oil into the same 5qt jug after the refill. The oil was jet black, and quickly overflowed the jug. How can this be? Does the 3.6 produce oil over time?? Grabbed a clear empty jug and dumped the rest. And that took another quart.
I triple checked the owner’s manual and it clearly states 5 quarts. I have read this being an issue do to the transition to the JLs in 2018, but still in 2020!
Now this calls into question many things.
Were the prior changes even done ? Did they simply check the dipstick, leave the filter, oil, and just add a quart making it 6? Or, are they still putting 6 quarts into the 3.6 engines?
What potential damage could driving approximately 12,000 miles with too much oil cause to the engine?
Very frustrating.
Used a 5qt jug of Penzoil .
All went well until I was transferring the used oil into the same 5qt jug after the refill. The oil was jet black, and quickly overflowed the jug. How can this be? Does the 3.6 produce oil over time?? Grabbed a clear empty jug and dumped the rest. And that took another quart.
I triple checked the owner’s manual and it clearly states 5 quarts. I have read this being an issue do to the transition to the JLs in 2018, but still in 2020!
Now this calls into question many things.
Were the prior changes even done ? Did they simply check the dipstick, leave the filter, oil, and just add a quart making it 6? Or, are they still putting 6 quarts into the 3.6 engines?
What potential damage could driving approximately 12,000 miles with too much oil cause to the engine?
Very frustrating.
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