Official EcoDiesel Oil and Filter Recommendations

[smlobx]

I would NEVER do a 10,000 mile OCI.

OTR heavy trucks have multiple oil filters that run in tandem. My Mack trucks have 3 that are huge.
The little filter on our Jeeps cannot possibly filter oil for 10K miles. Why risk it to save a couple of dollars and risk an engine issue unless you’re planning on getting rid of it in 2 years…

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[Maximus Gladius]

I would NEVER do a 10,000 mile OCI.

OTR heavy trucks have multiple oil filters that run in tandem. My Mack trucks have 3 that are huge.
The little filter on our Jeeps cannot possibly filter oil for 10K miles. Why risk it to save a couple of dollars and risk an engine issue unless you’re planning on getting rid of it in 2 years…

And, to boot, our little drain plugs on the engine and transfer cases aren’t even magnetic.

I had special ones made here from a Calgary company.
https://oneeyeindustries.com/

 

[Hootbro]

The little filter on our Jeeps cannot possibly filter oil for 10K miles.

Why would it be in the owners manual as a maximum allowance interval?

 

[smlobx]

Why would it be in the owners manual as a maximum allowance interval?

Because Jeep, and all other manufacturers, are really only interested in making sure your vehicle gets through the warranty period with as few issues as possible, but after that…

Also, due to the Feds push to minimize environmental pollution all manufacturers have extended OCI’s in their vehicles which is not the best scenario for your truck. If you use the oil change minder on your trucks computer I seriously doubt that you will go 10K miles before it tells you to change it. The most I’ve ever gone is about 7500 miles and that was with mostly highway miles and lightly loaded.

 

[Hootbro]

Plenty of people on the Ram side have no issue pushing their Ecodiesel out to 10K OCI.

I know of one early ecodiesel owner that was a hotshot transport driver and racked up nearly 200K miles doing 10K +/- with no oil related issues.

I get people have opinions to change early "cheap insurance" and all that, but I do not see the evidence of ecodiesel motors littering the highway broke down because someone went 10K on a oil change.

 

[CrazyCooter]

I've been going 10k OCI on mine after viewing UOA at 2500, 5000, 7500, and 11,000 miles all looking suitable for continued use. If the oil filter was bypassing, the wear metals would chave been high? I choose 10k as thsts what the manual states as a max.

I maintained high mileage light truck fleets back in the day with UOAs and routinely saw the diesels go 25k with suitable continued use. I changed the oil because spinning on a new filter and make up oil wasn't much cheaper for them in the end if the oil needed changed at 37k. On gas trucks you could actually see the intervals drop as the need for a tuneup showed itself. New plugs and pcv valve would get them back up to 20-25k again.

HDTs are going 50-75k? I remember my buddy's new Paccar 13L was 50k and not even a recommendation for an earlier change for new break in?

I read somewhere a few years back how many millions per year in lost sales Jiffy Lube would experience if people started going 3500 miles instead of 3000. Its all marketing! Would you ask the bartender to take away your beer that has 2/3 left and bring a new one as insurance that it might get too warm in the next few mins? Its wasteful.

Now if you run low quality oil, better do it sooner due to TBN dropping or viscosity change.

 

[biodiesel]

Plenty of people on the Ram side have no issue pushing their Ecodiesel out to 10K OCI.

I know of one early ecodiesel owner that was a hotshot transport driver and racked up nearly 200K miles doing 10K +/- with no oil related issues.

There's a huge difference between the 2nd and 3 gen EcoDiesel. Under the right conditions, you could run 30,000-mile oil intervals on the 2nd gen EcoDiesel. I've seen 30,000 UOA results. The 3rd gen EcoDiesel is destroying oil quickly. By 6,000 miles, a lot of oils on the 3rd gen EcoDiesel have already fallen out of spec and into the 5W-30 range.

 

[CrazyCooter]

There's a huge difference between the 2nd and 3 gen EcoDiesel. Under the right conditions, you could run 30,000-mile oil intervals on the 2nd gen EcoDiesel. I've seen 30,000 UOA results. The 3rd gen EcoDiesel is destroying oil quickly. By 6,000 miles, a lot of oils on the 3rd gen EcoDiesel have already fallen out of spec and into the 5W-30 range.

Looking at my last UOA at 9500 miles on the oil, my viscosity was still 12.5 and TBN 5.05 with the Amsoil EFM.

 

[Hootbro]

There's a huge difference between the 2nd and 3 gen EcoDiesel. Under the right conditions, you could run 30,000-mile oil intervals on the 2nd gen EcoDiesel. I've seen 30,000 UOA results. The 3rd gen EcoDiesel is destroying oil quickly. By 6,000 miles, a lot of oils on the 3rd gen EcoDiesel have already fallen out of spec and into the 5W-30 range.

Oil shearing out grade is nothing new, happens in the gas world also. Still does not mean the oil is ineffective for the remainder of a recommended interval.

 

[Almost]

There is also a big difference between someone racking up 10k miles doing average trips verse someone driving 12+ hours a day.

I change my oil when it gets to 50% life. I’ve also ran my motor for 23 hours straight before without turning it off (1400) miles. I don’t trust mopar at all. All they care about is getting you out of warranty as stated. A clear example of this is them telling you your transmission fluid is lifetime. ZF the actual maker states otherwise and says it should be changed every 60k.

 

[biodiesel]

Looking at my last UOA at 9500 miles on the oil, my viscosity was still 12.5 and TBN 5.05 with the Amsoil EFM.

That's interesting. It might also be the difference between the Ram and Jeep tuning. The one I posted fell into the 11.3 range with 9,100 miles on the clock.

Amsoil EFM 5W-40 (9,100 mile interval)
Iron (38 ppm)
Aluminum (86 ppm)
Viscosity (11.3)

What were your aluminum and iron numbers?

 

[Rusty PW]

Back in the day before the gov"t broke up Bell Telephone. Had a neighbor that worked in their vehicle maintenance department. He said that for oil changes. They would change the filter and top off the oil. They never drained the oil. When the vehicles got to around 90,000 miles
They would auction them off.

 

[biodiesel]

Oil shearing out grade is nothing new, happens in the gas world also. Still does not mean the oil is ineffective for the remainder of a recommended interval.

This is very true. The issue, at least on the 3rd gen EcoDiesel in the Ram, is the high aluminum numbers that we are seeing.

We also noticed that some people have higher fuel dilution issues. Those with higher fuel dilution seem to have higher wear numbers. For example, the Amsoil EFM that I reported had higher fuel dilution (we think from the tuning).

Amsoil EFM 5W-40 (9,100 mile interval)
Iron (38 ppm)
Aluminum (86 ppm)
Viscosity (11.3)

 

[CrazyCooter]

That's interesting. It might also be the difference between the Ram and Jeep tuning. The one I posted fell into the 11.3 range with 9,100 miles on the clock.

Amsoil EFM 5W-40 (9,100 mile interval)
Iron (38 ppm)
Aluminum (86 ppm)
Viscosity (11.3)

What were your aluminum and lead numbers?

Iron (54 ppm)
Aluminum (8 ppm)
Lead (0)
Copper (6 ppm)

This 9,500 mile test the zinc and phos levels were a bit lower than usual and they commented that the levels were low for the oil I had installed?

The test before that one with right at 7K miles was very similar except for the viscocity was 12.6 and TBN was 6.02. This is why I'm comfortable with going 10K miles.

I do use the truck mostly either loaded with camping gear OR towing my RV, flatbed, or dump trailers. I also try to NOT drive it to work on my 2.4 mile commute or any other short trips where she wont warm up.

 

[CrazyCooter]

Back in the day before the gov"t broke up Bell Telephone. Had a neighbor that worked in their vehicle maintenance department. He said that for oil changes. They would change the filter and top off the oil. They never drained the oil. When the vehicles got to around 90,000 miles
They would auction them off.

That's what I did with my Peterbilt. It came ordered with a spinner bypass filter and I used an Amsoil synthetic cellulose full flow. It consumed about a gallon every 10K miles and had a 10 gal sump. I just cleaned the spinner and spun on a new full flow every 25K. UOA's always looked good.

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