Oil change interval Ram CTD .

[wanderingbob]

I can't find the post but someone here questioned my 15,000 mile oil change interval , subject said his said 10,000 . I looked it up in my book and it does say 15,000 miles ! I can see some confusion because on the same page it sez that you must not exceed 10,000,but in parenthesize it sez thats for the smaller Fiat engine .
Reading the book also taught me sumptin else ,For 35,000 miles I had difficulty shifting into 4 wheel LOW , Transmixer must be in neutral to make that shift ! Now they tell me ! READ YO BOOK !

[45Ricochet]

rhagfo wrote:
Do any of you have your oil analyzed?
It would be interesting to see the results, as to the condition of the oil. I change my 2001 5.9 at 10,000 miles, test always come back good.

I always took Blackstone samples and 7k or so it was usually done. Of course mine had the 3rd injector event and some other smog items than yours. So you used a TBN test also?

[azrving]

I also went back and edited my post. I changed the word "dino" oil to "non syn". I'd guess most or many of us are of the abiotic oil theory or we wouldn't be operating RV's.

[Cummins12V98]

I changed my oil first time 2015 Cummins at around 4K I used a FleetGuard Stratapore filter and AMZ/OIL 15-40 full Synthetic oil. I have around 9K on oil so based on my type of driving towing 32,500# combined and no short trips the computer is saying change at near 15K. I will change at that time and do an oil analysis with Blackstone that will include TBN.

I used to run the 15-40 in my 98 12V 10K analysis said to go to 13 on next sample.

[azrving]

wanderingbob wrote:
I did not look it up but as I remember my dealers free change uses synthetic oil . I

My first oil change was performed by the dealer. They installed part number 68024967-PB which is Shell Rotella T Triple Protection 15w-40w dino.

When you search the Chrysler part number this is what I found. Both are JP4 non syn oil.

It's good oil and I have run it 10,000 but that's about my limit regardless of what my monitor would say. Genos does a lot of good work in their TDR Tubo Diesel Register.


Genos oil write up here.. Triple T was run 20,000 an sent to oil analysis. Walmart's brand was highly rated too.


Sratapore filter write up.

So the warning that Chrysler makes is that it is critical to run syn if it's operated at low temps but it appears that going by the dealer I went to in Fort Meyers, it's ok to run dino oil up to 15,000 miles.

The owners manual doesn't differentiate it just says JP4, it just says never go over 15,000 and always use syn when low temps. You can always find more good info beyond the owners manual. Chrysler is putting syn in during production only because they dont know where the truck will be operated.

[wanderingbob]

I did not look it up but as I remember my dealers free change uses synthetic oil . I

[CampingN_C_]

Dealer changes mine for free as long as I follow the books 7500/6 month interval, which for me will be the six months and only around 5K miles.

[WTP-GC]

rhagfo wrote:
Do any of you have your oil analyzed?
It would be interesting to see the results, as to the condition of the oil. I change my 2001 5.9 at 10,000 miles, test always come back good.

I have samples analyzed on my 7.3 PSD every other oil change, but haven't yet done so on my Ram. But now that I'm out of the 36K warranty and into the powertrain warranty, I may go ahead and start doing them.

Nobody on that forum should be changing their oil at 15K. That's basic EVIC data, which is comparable to the most vanilla driving scenarios. 7500 or 10K should be the limits of folks who use their vehicle for more than commuting on open highway at 60 MPH everyday.

[Old-Biscuit]

My 2007 Dodge 5.9L specifies 7500 (Schedule 'B' severe duty) and 15,000 (Schedule 'A')

I followed 'My Schedule'.......5000 miles because I towed HEAVY for 7 yrs.
Oil/oil filter/fuel filter & air filter

Tranny oil/filter/bands at 25K

Rear Diff. Fluid-------15K

[rhagfo]

Do any of you have your oil analyzed?
It would be interesting to see the results, as to the condition of the oil. I change my 2001 5.9 at 10,000 miles, test always come back good.

[mileshuff]

My 2007 Dodge 6.7L specifies 7500 miles.

[45Ricochet]

15k miles towing or stand alone would require more oil than my previous 5.9 held ( 3 gallons). Current engine holds 6 gallons and the oil mileage is 15K miles.
Interesting though how Cummins now dates the oil change interval periods :W
Maybe they bought Rotella brand from Shell oil :B
I know at least with the Canyon they use oil life monitor and it's well past six months now with no change oil CEL.
Will the Ram flash a oil change CEL after a six month period?

[azrving]

Which oil are you using?

There is also a diesel engine supplement to the owners manual. At least I know there is for my 2014.

It's also important to pay attention to the coolant as it changed to OAT in 2013. OAT is purple but can look orange depending on the light angle.
I cant post a link because of this website.

[fla-gypsy]

Yeah this forum is the last place I come for service advice. The owners book has everything you need to know.

[DownTheAvenue]

wanderingbob wrote:
I can't find the post but someone here questioned my 15,000 mile oil change interval , subject said his said 10,000 . I looked it up in my book and it does say 15,000 miles ! I can see some confusion because on the same page it sez that you must not exceed 10,000,but in parenthesize it sez thats for the smaller Fiat engine .
Reading the book also taught me sumptin else ,For 35,000 miles I had difficulty shifting into 4 wheel LOW , Transmixer must be in neutral to make that shift ! Now they tell me ! READ YO BOOK !

It is amazing how much useful information is in the owners manual, which is written by the people who designed and built the vehicle.

It is equally amazing how many people never even open the owners manual believing they know more than those people who designed and built the vehicle.

It is also amazing how many people post on here or other forums asking about what to do about a certain aspect of their vehicle, and take what is posted on the forum as proper procedure, when al they had to do was look at their owners manual for the correct information.