New engine replacement on 2021 3.6

[whysoserious]

Maybe I missed

Yikes! Well I’m suppose to pick my gladiator up today so I’ll talk to them about proving my motor has sludge.

I apologize if I missed it in the thread, but what caused you to take the Jeep into the dealership? What was it doing (symptoms) prior to them declaring it needed a new engine?

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[ShadowsPapa]

He's not been here in almost 2 months....... I'd think that if he picked it up like said in that post, 2 months ago - May 2nd - he'd know the results.
So........

 

[DickensCPA]

It would take more than ONE single miss on the filter change to show a mess like that with sludge.
Way back when, people used to do oil changes and change the filter every-other-time. It was normal, even recommended that the filter didn't need to be changed every time. Think of the times - the oil, the way cars were made and driven - and filters didn't look like that. Not in just one skip of the filter change.
If you changed your oil every 5,000 miles and someone else waits until the oil percentage is at 0, or around 9,000-10,000 miles, you would be saying that their filter would look like that or that 2 5,000 mile oil changes skipping the filter change once would be the same thing.
Sorry, that's not just skipping the filter change one time. If it was, that means every person who went the full 10,000 miles on an oil change would have black sludge and it just isn't so.
You'd have to go 10,000 miles between changes and skip the filter change at least one time to get like that. (I need to go back through all pages to see what oil was used as well - or how it was driven)

With today's oils and not if you actually warm the engine up and drive it for more than 10 minutes at a time you can easily go farther out without sludge.

There's still more to this story that isn't here.

I bought my wife a brand new Chrysler T&C Sig model with everything back in 2009 and before it was out of warranty I was adding a qt of oil every 800 miles. Dealer said that was within "normal." I told him the manual says change oil every 7500 miles and if I did that I wouldn't have any oil to change. It only held 4.5qts.

People used to ask me how often I changed the oil in her minivan and I said I don't it changes itself. I just change the filter every 5-6000 miles.

My Father in Law bought my wife's sister a new car back in 2000 ( I think. My wife and I got married in 1996) she had the oil changed at WalMart and they didn't put the plug back in the oil pan. She didn't make it far before she locked up.

Like my story above with Jiffy Lube, WalMart paid for a new engine on my sister in law's car but like me we both had to have something to drive and come out of pocket to get it fixed until we finally got our money from them. I had a new Hemi put in on my dime and was rolling in a week and had my money 4-5 months later. My SIL had to buy a piece of crap beater and park her brand new car and battle it out for like two years. All the while my FIL is making payments on a car that's parked.

 

[ShadowsPapa]

Not seeing how that connects to my post, but on yours..............
800 is crazy for a quart, however, even BMW and others, right in their literature/owner manual, says a quart in anywhere from 1,000 to 2,000 miles is 'acceptable". I have a problem with that - a modern engine if cared for and driven as needed and using good quality oil, should get at least 2,000 miles without any needing to add any oil.
Mine is still full after almost 4,000 miles. It may show down a bit because I drew oil out so I could send a sample in for testing. My wife's JLU 2.0 is still full after about 2,000 miles. I've never had to add oil to a vehicle between oil changes in the last 2 decades. Heck, even the 4.0 in my car stays up over add between changes. Yes, they all go down some - it's natural and expected - oil must get to the valve stems to lubricate them, oil must get to the cylinder walls so the rings glide on oil and not scrape metal both ways. So being down a little after 2 or 3K miles isn't crazy but if it's down a quart in only 1,000 miles, one could do some math and figure out how much oil is going into the cylinders on every stroke. More than it should be.

I told him the manual says change oil every 7500 miles and if I did that I wouldn't have any oil to change. It only held 4.5qts.

Sorry, that argument doesn't work because it never says you can go without adding between changes, it only says you can go that long between changes. anyone who doesn't check the oil level every thousand miles or so is negligent. I change the oil in my classics every 12 months - don't believe for a minute that I don't still check the oil every so often even if it's only driven 5,000 miles in that year (sometimes only 1,000 miles in that year)
Who in their right mind would go even 5,000 miles and not check the oil even if they only changed it every 7500 miles.
Bet he shrugged in disbelief that anyone would go that far not checking and adding as needed between changes.

 

[DickensCPA]

Not seeing how that connects to my post, but on yours..............
800 is crazy for a quart, however, even BMW and others, right in their literature/owner manual, says a quart in anywhere from 1,000 to 2,000 miles is 'acceptable". I have a problem with that - a modern engine if cared for and driven as needed and using good quality oil, should get at least 2,000 miles without any needing to add any oil.
Mine is still full after almost 4,000 miles. It may show down a bit because I drew oil out so I could send a sample in for testing. My wife's JLU 2.0 is still full after about 2,000 miles. I've never had to add oil to a vehicle between oil changes in the last 2 decades. Heck, even the 4.0 in my car stays up over add between changes. Yes, they all go down some - it's natural and expected - oil must get to the valve stems to lubricate them, oil must get to the cylinder walls so the rings glide on oil and not scrape metal both ways. So being down a little after 2 or 3K miles isn't crazy but if it's down a quart in only 1,000 miles, one could do some math and figure out how much oil is going into the cylinders on every stroke. More than it should be.



Sorry, that argument doesn't work because it never says you can go without adding between changes, it only says you can go that long between changes. anyone who doesn't check the oil level every thousand miles or so is negligent. I change the oil in my classics every 12 months - don't believe for a minute that I don't still check the oil every so often even if it's only driven 5,000 miles in that year (sometimes only 1,000 miles in that year)
Who in their right mind would go even 5,000 miles and not check the oil even if they only changed it every 7500 miles.
Bet he shrugged in disbelief that anyone would go that far not checking and adding as needed between changes.

In my head and the way it connected to your post is you mentioned the filter "not being changed every time" and I was telling my story about not changing my wife's filter every time just after so many miles because the oil in essence changed itself. I guess my head just worked that way.

I never said I didn't check the oil at regular intervals between oil changes, if I didn't I wouldn't have known it was down a qt at 800 miles and I would've locked it up at 3200 miles after that first oil change. If they think 800 miles/qt is acceptable they should've given it a bigger oil bag.

In my head I just find it strange they think it's normal to give a 7500 mile interval and you'll use over twice the oil capacity of the vehicle to get there. Maybe it's just me and I can live with that, but if a vehicle has a capacity of 4.5 qts and you go thru 9.5 qts to get to the manufacturer's suggested interval that's unacceptable. I don't even consider that an oil change. It should say "continuously add oil as needed as you drive and change the filter every 7500 miles."

As far as the service guy "shrugging in disbelief that anyone would go that far not checking and adding as needed between changes" that's on his dumb @ss if I hadn't checked between oil changes I would've brought him a locked up engine not questioning why I had to add so much.

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