I was hoping that everyone would give me some feed back on something that I have been thinking about. I have been thinking about filtering the engine oil in my truck the same way that companies filter diesel fuel in tanks. Hook up an external filter system from the oil pan drain plug. Then return it from the external filter back to the engine. By doing it this way I will not void my warranty and I can filter the oil for certain length of time on a weekly basis.This can be easily accomplished with quick couplers. I have thought of an electric pump also to prelube the engine prior to start up, actauted by a simple switch. I have seen this used on 1000 Hp diesel genset, works great after doing an oil filter change. Simply turn the switch on to fill the oil filters which it has six of. I would appreciate any information or feed back that anyone could give me.

 

I would steer clear unless you're in a position to have an oil analysis done. Sure you clean the oil of carbon and debris but what about the acids formed from oil+heat+water, oil lubricosity breakdown and etc? If you're using an extreme high-end oil like royal purple or something siilar maybe. Just do your 3000 mile change and be happy. Engines can go a long ways these days. Play with the engineering and you play with you sanity.

Besides, w/o proof of regular oil changes, I bet you warranty would become null and void.

A good synth oil can easily go 7500 miles if not more. You can just install a dual filter relocation kit, change your filters every 3000 and your oil every other filter change. I would not push it anymore than that. Oil is too important to the heart of your ride. Besides, oil is much cheaper than an engine replacement.

 

Chrysler recomends 7500 miles on B interval and 13000 miles on A intervals.
The main purpose of the external filtering is to remove contaminants not decrease oil change intervals. Yes I do have oil analysis done on engine oil changes. I have done oil analysis on all engine/pumps and find that the results can save thousand of dollars if a problem is identified, needless to say I believe firmly in oil analysis.
I plan on changing Synthetic oil and filter every 3000 miles. Unless oil analysis clearly indicates that there is no need to. The cleaner that I can keep the oil should in theory extend the engines life. That said I have done an synthetic oil change on a 92 Dakota every 3000 miles and now have 130,000 miles on the engine with only 5-7 psi drop in the compression. I am simply trying to improve on what I have learned so far
Thank you for your input.

 

I don't have access to oil analysis here in the UK.
But it got me to thinking about my fuel and contaminants in the oil.
I run predominately LPG or liquified petroleum gas.
This is a very clean fuel in especially with regards to engine particulates in emmissions.
It is also 20% less in carbon emmissions as well.
I wonder therefore, if my oil is cleaner for longer?
Logic would say yes.
Al.

 

I guess it all depends on where you are located. Down here in Texas where it's dry and dusty most of the time, 7500 miles on an oil change would eventually murder the engine especially on dino oil. With that being said, my 03 Avalanche had the computer that told you when it was time to change the oil based on the factors the engineers told it at build time. My first change came at 7200 miles which worried the poop out of me. I went back to the 3000 mile change after I discovered the sludge problem occouring from these long intervel changes.
But hey! As long as the oil tests good, give it a shot!
If so, do a write up on it so we can all gain experience. I for one would be glad to stop sending the Arabs my money. They have enough.

 

What engine and year are you talking about for 7,500 miles on Schedule A. All the service information I have for the Ram x500 series gasoline engines 4.7L and 5.7L V8s are 3,000 miles for severe service/Schedule A. 6,000 miles is the longest OCI DC recommends for the Ram x500 series gasoline engines.

 

I have 2005 Dodge Ram 3500,4x4. Laramie, Molten Red with the 5.9 liter cummins diesel engine, which holds twelve liters of oil. I was hoping for in put from both forums.

 

Diesel's use a different oil than gas engines. But, the general advice is use a quality dino oil and stick close to the Schedule A OCIs. With a good synthetic, you should be able to stretch to Schedule B intervals. But, dusty conditions, lots of idling, overheating, towing, or other extreme conditions should push even synthetic OCIs back to Schedule A territory.