I may have to get a 68RFE in my new truck.

[Cummins12V98]

Figure out where the fresh water tank "IS". Front of axle load it up! Behind axles carry only what you need.

My advice is dump the OE oil get yourself 12 Qts of AMZ/OIL 15-40 Signature Series with their filter. Run it to 15k then change from there on at 15k intervals.

My numbers compare well to the Universal averages of around 6,000 miles.

 

[RVTRKN]

Stuart, I didn’t get the memo that it’s 15k miles, from the EPA. My Toyota’s are 10k miles, and I refuse to believe that, I change oil every 5ks EPA I believe has their hands in those numbers. My 2019 will be 7500 and that is too long for me.

 

[AH64ID]

Stuart, I didn’t get the memo that it’s 15k miles, from the EPA. My Toyota’s are 10k miles, and I refuse to believe that, I change oil every 5ks EPA I believe has their hands in those numbers. My 2019 will be 7500 and that is too long for me.

Do a UOA and you'll see why 15K mile intervals are acceptable.

These aren't 1970's oils.

 

[Cummins12V98]

Stuart, I didn’t get the memo that it’s 15k miles, from the EPA. My Toyota’s are 10k miles, and I refuse to believe that, I change oil every 5ks EPA I believe has their hands in those numbers. My 2019 will be 7500 and that is too long for me.

Even with results like mine at the full 15k and they say I could go longer???

 

[Cummins12V98]

Do a UOA and you'll see why 15K mile intervals are acceptable.

These aren't 1970's oils.

Like mine???

 

[Cummins2014]

Figure out where the fresh water tank "IS". Front of axle load it up! Behind axles carry only what you need.

My advice is dump the OE oil get yourself 12 Qts of AMZ/OIL 15-40 Signature Series with their filter. Run it to 15k then change from there on at 15k intervals.

My numbers compare well to the Universal averages of around 6,000 miles.

View attachment 115856

Right on Schedule

 

[Cummins2014]

Do a UOA and you'll see why 15K mile intervals are acceptable.

These aren't 1970's oils.

Or don't , just change the oil with a good quality oil according to the manual, or not and use the magic snake oil . This oil thing is just hilarious, almost as much fun as reading the DEF thread

 

[AH64ID]

Or don't , just change the oil with a good quality oil according to the manual, or not and use the magic snake oil . This oil thing is just hilarious, almost as much fun as reading the DEF thread

My comment was to reinforce the OE OCI, not promote anything else. @RVTRKN is skeptical of the OE OCI, and one or two UOA’s would be far cheaper than cutting the oil life in half over the life of the truck.

 

[RVTRKN]

Ok, I’ll drink a small glass of Koolaid and have a UOA done at 7000 miles, but how will I know if it’s good or bad?

 

[TFucili]

Ok, I’ll drink a small glass of Koolaid and have a UOA done at 7000 miles, but how will I know if it’s good or bad?

I haven't done one in ages, but Blackstone usually had a bit of commentary on the report. TBN was what I first looked at as far as oil longevity. Unless something is out of whack, it was more a matter of looking for trends once you have a baseline, much like us going for a blood test. There is a ton of information to digest, if you are inclined.

 

[Cummins12V98]

Too Damn funny! “Snake Oil” now who was it the one that hounded me on PM’s about AMZ/OIL SevereGear????????

Should I post some of them?

 

[AH64ID]

Ok, I’ll drink a small glass of Koolaid and have a UOA done at 7000 miles, but how will I know if it’s good or bad?

That is their job to tell you, but you can post the report on here too.

I prefer OAI testing over Blackstone. I found Blackstone to be less than knowledgeable when talking to them, and they charge more for TBN. When I was fed up with Blackstone I asked the local Rocky Mountain Cummins who they use and they recommended OAI (oil analyzers inc).

If you do choose Blackstone be sure to pay extra for the TBN report, as it’s crucial to oil life.

that being said I’m a big fan of a short first OCI. Personally I’d dump it before 5K miles, then again 7K miles later and then work on 15K intervals. That has to do with breakin metals and such, not oil life.

My first change was at 4.2K, and I’m in the process of my 2nd change today at 11.1K. I’ll run this oil for 15K or 1 year, whichever happens first.

 

[Cummins2014]

Too Damn funny! “Snake Oil” now who was it the one that hounded me on PM’s about AMZ/OIL SevereGear????????

Should I post some of them?

Ron,Ron,Ron !! I wanted to try this Amsoil, in my rear differential, never intended to use any of the other products. It calls for synthetic so why not. I contacted you on it, you helped me out ,and I thanked you for it, would you like another thanks, here thank you !! . Then I ordered it on my own, you offered something about going thru someones account , but the price was not enough to mess with going thru someone else. If you would like you can post anything you want. I DON"T CARE.

IMO these oil threads ,and oil testing ,bypass filters, DEF, etc, et,c etc, etc, etc, etc ,are just too hilarious, the Koolaid has definitely been drank . Please continue on .

 

[Cummins2014]

My comment was to reinforce the OE OCI, not promote anything else. @RVTRKN is skeptical of the OE OCI, and one or two UOA’s would be far cheaper than cutting the oil life in half over the life of the truck.

I followed the manual ,I have never been anywhere close to 15K, it was every six months. T4, and the Mopar or Fleetguard filter . My thinking WAS if that engine has an issue, I am covered on warranty, don't have to have a bunch of oil reports or anything, I just followed the MANUAL, to me thats seems to be the easiest way. I don't do the oil tests ,not interested at all .

I'm off warranty now, I will do the same thing I did with my 7.3 Superduty ,once a year before I head to Montana in early June. I don't remember exactly when I went to once a year on the Ford, had it for nearly 16 years, probably after about 5 years ,the same I am going to do with this Ram. Couple things I will do different this coming spring, is I will go with T6, and give that Donaldson DBL7349 a shot. Headed to Alaska for three months, starting early June , most likely at least a 10K trip.

 

[JR]

The OCI certainly doesn't have anything to do with the EPA. They don't provide the warranty. 500 hour intervals are the norm on the 6.7 in anything Agriculture and construction. Granted the sumps tend to be a little larger but the duty cycles also tend to be a little harder than a pickup.
I recently saw a new DD8 (Detroit 7.7 liter) with up to 2000 hr interval on the engine oil/filter depending on duty cycles. Again a larger sump and not exactly an apples to apples comparison but the point is 500 hrs/15,000 miles is pretty conservative with the current emissions and engine manufacturing technology.

Like mine???

Or mine, with plain ol conventional oil

 

[Wiredawg]

Hey Stewart,

This may be a good point to break off this thread... You didn't get the 68RFE, so not relevant anymore. Try posting in Towing and Hauling if talking about your RV, hitch, or towing related on your truck.

Just saying posting by topic will help better organize the forum.

Glad everything turned out.

Happy Trails,

Ron

 

[Cummins12V98]

"Just saying posting by topic will help better organize the forum."

Ron did you accidentally overmedicate this am???

 

[Cummins12V98]

Too Damn funny! “Snake Oil” now who was it the one that hounded me on PM’s about AMZ/OIL SevereGear????????

Should I post some of them?

Let me add I was someones BEST BUDDY at that time also.

It's "AMSOIL" when it's a product a person wants to use then it's "snake oil" when that person does not use it. OK

 

[Newsa]

Let me add I was someones BEST BUDDY at that time also.

It's "AMSOIL" when it's a product a person wants to use then it's "snake oil" when that person does not use it. OK

You're still my bestie. But i will try Mystik JT8 next time. Got a good deal on it

 

[CoastyAV8R]

I've never done an oil sample on any of my 5 Cummins I've owned and I saw they recommend for diesels to do it every 15,000 miles or 250 hours. How many of you do that on that schedule or do you just take periodic snapshots of your oil?