Oil change interval

[HarryS]

Is there a way to change the interval from 10K to a more reasonable 5k?

 

[Eric Troup]

My 2025 Ram 2500 Cummins % Oil Life gauge seems set for 15,000 miles. So I change oil at about 50% or 7,500 miles.

I change fuel filters every other oil change.

 

[mikeru]

Is there a way to change the interval from 10K to a more reasonable 5k?

Not that I’ve seen.

 

[JJEH]

Is there a way to change the interval from 10K to a more reasonable 5k?

Sure, ask the dealership to update their sticker or make a note yourself. If you ask about the computer, I'm not sure.

With good oil 10K is nothing. Why would you want to change it every 5K?

 

[HarryS]

Call me old fashioned. 10K changes seem to encourage sludge buildup. I'd rather be safe than sorry

 

[mikeru]

Call me old fashioned. 10K changes seem to encourage sludge buildup. I'd rather be safe than sorry

Sure, ask the dealership to update their sticker or make a note yourself. If you ask about the computer, I'm not sure.

With good oil 10K is nothing. Why would you want to change it every 5K?

I'm sure the OP has his reasons for wanting to do that. He's not asking for advice on his OCI's. There are different schools of thought on how long to run a given motor oil, and plenty of threads where this is debated. I'm just trying to keep this thread from becoming another one of "those" threads (oil debate threads).

 

[HEMIMANN]

If the interest is for OCI's extended to the maximum possible, UOA is the only method to do so safely. And even then, consumer labs are insufficient for this task.

As for defective lube systems such as HEMI, UOA may not catch a failing lifter in time, which is why we use super oils and short OCI's.

Example: when I was Mobil Industrial Lube Engineer, I had access to complete UOA, including my own vehicles. I ran a UOA extended experiment on my car with Mobil 1 (don't recall the vis). It finally got condemned @ app. 14,000 miles from excessive silica - sand - dirt - past the engine air cleaner. This was mostly highway miles too (I was field service).

Think about that - Mobil marketed "up to 25,000 mile OCI's", remember? Sure - in a lab engine. Bogus marketing.

 

[EdGs]

........ It finally got condemned @ app. 14,000 miles from excessive silica - sand - dirt - past the engine air cleaner. This was mostly highway miles too (I was field service).

Think about that - Mobil marketed "up to 25,000 mile OCI's", remember? Sure - in a lab engine. Bogus marketing.

My FIL always put filter minders on his vehicles.

He said that as filters trap particles, they actually filter better, until they get past a certain point, then they are too restrictive to adequate airflow, and need changed out.

 

[HEMIMANN]

My FIL always put filter minders on his vehicles.

He said that as filters trap particles, they actually filter better, until they get past a certain point, then they are too restrictive to adequate airflow, and need changed out.

And.............how do you know when they become "too restrictive"? The rub. Without a differential pressure gauge tuned to your specific engine airflow needs - you don't know.

 

[EdGs]

And.............how do you know when they become "too restrictive"? The rub. Without a differential pressure gauge tuned to your specific engine airflow needs - you don't know.

He worked on heavy equipment, conrete trucks tractor-trailers, loaders, dozers, etc.

Unfortunately, he passed before I could pick his brain on this, not sure if the minders were sized according to the airflow needs on the different pieces of equipment, etc.

The company he worked for for almost 50 years had them on nearly everything they ran, I believe.

 

[HEMIMANN]

He worked on heavy equipment, conrete trucks tractor-trailers, loaders, dozers, etc.

Unfortunately, he passed before I could pick his brain on this, not sure if the minders were sized according to the airflow needs on the different pieces of equipment, etc.

The company he worked for for almost 50 years had them on nearly everything they ran, I believe.

Yep - same here, on the big engines that went out for prime power generators (remote villiages, mines, rock crusher quarries, etc.).

They are also used on big hydraulic systems like in paper mills, etc. A manifold of filters allows them to be changed while the system is operating.