How Often do You Change Your Oil

[Cummins12V98]

Easy answer - as long as it is under warranty it's 6 month, afterwards it is by the miles.

That is why I do a Blackstone Report every time to cover my AZZ.

 

[Cliffman]

Still post-injection, from what I have read.

So no change to the engine from 2018 to 2019 that would constitute the extended time interval from 6 to 12 months that you can tell?

 

[Ozymandias]

6 month was just .......
Even if one is talking about oil dilution - that doesn't happen sitting on the parking lot. It needs to run for it and then we have the miles.

 

[TFucili]

So no change to the engine from 2018 to 2019 that would constitute the extended time interval from 6 to 12 months that you can tell?

Tons of changes, even including hydraulic lifters, but none that seem to connect the dots.

 

[lpennock]

Most likely it is just the manual authors seeing a way for FCA to make a little extra money.
My 06 had 12/15k for Schedule A and 6/7500 for Schedule B service but they say most people are Schedule B.
My 08 had 6/7500 only
My 18 has 6/15K or 6/12.5k for Bio Diesel
Now in 19 they went back to what the 06 had for Schedule A. Probably just like the 3k oil changes, 20 years of tradition unmarred by progress. In 19 they decided to just become realistic about it.

 

[EDankievitch]

What year did they make that change???

For 2013 when they went to the DEF SRC emission system.

 

[JR]

I feel it has very little to do with the engine architecture. CP4 fuel system has been around in other engine platforms (DMax, Power Stroke) for many years. In my opinion that eliminates the fuel system as the reason for the increase in time intervals.

The driver for short time intervals is fuel dilution/soot loading. CK4 addresses both of these issues in abundance over CJ4.

As an example the DD8 (Detroit Diesel 8 liter) was specifically designed for CK4 oil upon it's release. It's service intervals are 45,000 miles/1500 hrs. That's one engine service interval, and severe duty at that. Long haul intervals for the DD8 are 60,000 mile oil change intervals.

The oil sump on the DD8 vocational platform is larger than the ISB in our pick-ups but it's not 3 times larger - which would be the equivalent of 9 gallons in an apples to apples comparison.

https://demanddetroit.com/parts-service/support-by-model/dd8/

 

[Ozymandias]

I feel it has very little to do with the engine architecture. CP4 fuel system has been around in other engine platforms (DMax, Power Stroke) for many years. In my opinion that eliminates the fuel system as the reason for the increase in time intervals.

The driver for short time intervals is fuel dilution/soot loading. CK4 addresses both of these issues in abundance over CJ4.

As an example the DD8 (Detroit Diesel 8 liter) was specifically designed for CK4 oil upon it's release. It's service intervals are 45,000 miles/1500 hrs. That's one engine service interval, and severe duty at that. Long haul intervals for the DD8 are 60,000 mile oil change intervals.

The oil sump on the DD8 vocational platform is larger than the ISB in our pick-ups but it's not 3 times larger - which would be the equivalent of 9 gallons in an apples to apples comparison.

https://demanddetroit.com/parts-service/support-by-model/dd8/

In Europe standard today is shy over 100K Miles for Engine Oil on long haul Trucks.
Other fluids are even longer, Axles go 300K Miles with same oil.

 

[SnoKing]

In Europe standard today is shy over 100K Miles for Engine Oil on long haul Trucks.
Other fluids are even longer, Axles go 300K Miles with same oil.

America is a throw away society! Quick change oil shops promoting 3K oil changes is common. I only change my 2015's oil at 6 months is because of possible warranty issue. I have three more years on the Max Care Warranty and then it will be changed yearly. 5 years and 70k on the truck. SnoKing

 

[Whitewolf]

I do things in number that make sense to me. Oil, oil filter and both fuel filters are changed every 15K miles. Trans, front and rear diffs and transfer case every 60K.

 

[gsbrockman]

What year did they make that change???

2019......and I’m not sure if the switch to 10W30 oil contributed any to it or not.

 

[JR]

In Europe standard today is shy over 100K Miles for Engine Oil on long haul Trucks.
Other fluids are even longer, Axles go 300K Miles with same oil.

I'm talking about a small engine comparable to the ISB.
Larger engines with larger sumps generally have longer service intervals.

 

[Goose_NC]

When EVIC says 25% remaining, I change the oil aling with the fuel filters. Except that I get. Free for the oil change from selling dealer at 5000 miles. Then I'll reset and run the EVIC.

 

[Randomrunner12]

Change mine at 15k regardless of months in between. I use amsoil as well.

 

[MtnRider]

15K regardless as well. I usually hit 15K around ~9 months.

 

[Cliffman]

When EVIC says 25% remaining, I change the oil aling with the fuel filters. Except that I get. Free for the oil change from selling dealer at 5000 miles. Then I'll reset and run the EVIC.

"EVIC"??? Electronic Vehicle Identification Code??? Just guessing. LOL

 

[SnoKing]

Electronic Vehicle Information Center!

 

[masterdrago]

So if I don't change my 12 qts of oil every 6 months, I'm voiding the warranty? Even if the truck has sat unused for 14 months except to be cranked and driven a mile or two after warm up once a week?

 

[Tuesdak]

So if I don't change my 12 qts of oil every 6 months, I'm voiding the warranty? Even if the truck has sat unused for 14 months except to be cranked and driven a mile or two after warm up once a week?

Yes. And if faced with paying for a warranty engine FCA may ask.

It's not been asked or answered if you are deployed in the military and the truck just sits, like on a dealer lot, if there is an exception. Do I want to go to the dealer during a pandemic for an oil change? (Can I even go depending on closed locked down business of the month in some places.) Not political just a sad reality as my selling dealer reduced hours and days open for service.

It's disappointing no one has shared the reason for 6 months aside of RTFM "Just Do It!". Esp. when OEM's are all about lower TCO and brag about the 15K oil change interval.

In your case it's being driven to keep seals lubed, whatever, IMO a good thing. It won't hurt to have the oil changed to stay in warranty. $100 twice a year on a $60,000 pickup isn't that painful vs. becoming your own warranty station.

 

[AH64ID]

My truck wasn't shipped with an owners manual but it did come with a EVIC that tells me oil life, which is 15K miles max. It would not be hard for the EVIC to tell you to change the oil based on time/miles/hours/fuel dilution or whichever happens first, but they didn't program it that way.

Personally I run 12 month intervals, for the most part, on all my vehicles.