Diesel Oil Change intervals

[kevman65]

Let me start by saying, no I don't have a diesel JT.
Yes, I've been around diesels all my life, learned how to drive in a 1977 cab-over Peterbilt.

I have been through the transitions from dino oil to partial synth to full synth in oil for diesels.

Use your in dash oil life meter as a guide, but do NOT go much past 7500 miles between oil changes. Do not use the oil manufacturers guides for oil change intervals, they aren't warrantying your engine. Yes diesels run hotter. Yes heat is a killer to oil. Yes diesels run dirtier internally compared to gas.

If you're towing/hauling a majority of the time, if you're driving in consistently hot climates, then shorten your intervals on oil changes. Bad news for (I hate this term) "MallCrawlers", your short runs and not really getting everything up to temp throw you in the same category, shorter intervals.
If you're running mostly highway and interstate and you aren't hauling/towing, you get to stretch out the intervals, but again don't run it much past 7,500 miles.

First oil change, it's ingrained in me from another age and I still follow it. I go early, 2500-3000 miles. I drain the oil through a paper funnel strainer and I look for shiny bits.
You and I don't know WHAT they put in these trucks from the factory. So why risk it?

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[mrmo]

I see a Mobil 1 European spec 5w40 oil, is it good for these Jeep diesels? Says European cars, its a full syn...

 

[WXman]

I see a Mobil 1 European spec 5w40 oil, is it good for these Jeep diesels? Says European cars, its a full syn...

No, a rep told me that NONE of their products are suitable for the EcoDiesel. That was about 4 weeks ago.

 

[Mac Attack]

No, a rep told me that NONE of their products are suitable for the EcoDiesel. That was about 4 weeks ago.

But, as seen on other forums; Pennzoil Euro spec is?

 

[mrmo]

Killin me...

 

[Free2roam]

Honestly. I can't believe people get into oil analysis pages. I changed mine at 7k just before a trip. If in fact it does blow for some reason I've got plenty of warranty left. I just have the dealer change my oil. I was told by the dealer that the Jeep wave program consists of 3 oil changes per year for 3 years.
I ran the piss out of my Honda Civic for 26 years getting all the way to 580,000 miles. Ran nothing but Valvoline 10-30. Changed the oil at 3-4k. Always drove that car like I stole it. She never failed.

 

[WXman]

But, as seen on other forums; Pennzoil Euro spec is?

The Pennzoil Euro 5W40 was reformulated in the spring of 2020 and I never got confirmation that the MS-12991 spec was approved for the new formulation. I assume it is, but I've never seen it in writing since the change.

I think it must be though, because the Quaker State is the same oil in a different branded bottle and it's got the MS-12991 cert right on the bottle.

 

[cotnballs2000]

The Pennzoil Euro 5W40 was reformulated in the spring of 2020 and I never got confirmation that the MS-12991 spec was approved for the new formulation. I assume it is, but I've never seen it in writing since the change.

I think it must be though, because the Quaker State is the same oil in a different branded bottle and it's got the MS-12991 cert right on the bottle.

Pennzoil Platinum Euro Full Synthetic 5W-40 does meet the spec, its listed on the bottle.

I looked on the Amsoil website and none of their 5w-40s meet the MS-12991 FYI to the pervious posts.

 

[wv_gladiator]

I've been doing 5 to 6k or 25% oil life, which ever comes first.

 

[raypla]

Been running Mobil 1 Extended life 15k for years. Around 7.5K would spin on a new ‘high’ grade filter, top it off and run for another 7-10k. Never had issue. My understanding of oil analysis, which is not much, is that when the oil is new more wear occurs until an equilibrium, between oil/metal/nasties is met. Essentially frequent changes do more harm than good & might play part in the posted metal results from posted UOA.

That being said I run my 3.0 harder than necessary. This thing rips, sits your pelvis/back into the seat just on throttle, f’n sick. I got my first oil change around 10,650. Oil monitor posted around 9,500. I’ll continue to follow the monitor.

 

[ajkaz]

Honestly. I can't believe people get into oil analysis pages. I changed mine at 7k just before a trip. If in fact it does blow for some reason I've got plenty of warranty left. I just have the dealer change my oil. I was told by the dealer that the Jeep wave program consists of 3 oil changes per year for 3 years.
I ran the piss out of my Honda Civic for 26 years getting all the way to 580,000 miles. Ran nothing but Valvoline 10-30. Changed the oil at 3-4k. Always drove that car like I stole it. She never failed.

I was wondering how many changes were included with Jeep Wave, so its 3 per year, for 3 years? Can you have it done whenever you want or does mileage or time have to be a factor?

 

[Mr._Bill]

I was wondering how many changes were included with Jeep Wave, so its 3 per year, for 3 years? Can you have it done whenever you want or does mileage or time have to be a factor?

For Jeep Wave, it's three total changes over three years.
For 2020 owners, it was four over two years, and the renewal is three changes over two years.
The changes are done whenever you request them.

 

[Teqsand]

I will loosely rely on the oil life indicator... Chryselr doesn't make money if it lasts forever, they design in a wearout period hoping you replace it with another CDJR product....

 

[Rusty PW]

I will loosely rely on the oil life indicator... Chryselr doesn't make money if it lasts forever, they design in a wearout period hoping you replace it with another CDJR product....

Planned obsolescence.


A policy of producing consumer goods that rapidly become obsolete and so require replacing, achieved by frequent changes in design, termination of the supply of spare parts, and the use of nondurable materials.

 

[@californiajeeping]

I am around 5500 and scheduled my first.

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