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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

what interval do you change oil/oil filter at?

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Not sure if this has been done so ill do one. If it has let me know ill delete :)just getting an idea of what people do, how far they push their oil and filters before replacement.

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what interval do you change oil and oil filter pick one of each (multiple choice) 85 members have voted

  1. 1. what interval do you change oil and oil filter pick one of each (multiple choice)

    • ~3000 miles oil change
      3
    • 3000-5000 miles oil change
      10
    • 5000-7000 miles oil change
      10
    • 7000-10,000 miles oil change
      25
    • over 10,000 miles
      3
    • ~3000 miles filter change
      1
    • 3000-5000 miles filter change
      5
    • 5000-7000 miles filter change
      6
    • 7000-10,000 miles filter change
      17
    • over 10,000 miles filter change
      7

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I agree with you mike.There is a pot of waste out there. But there is one minor factor missing. The person. I have been in the 'HABIT' and 'BELIEF' you change oil at a max of 5k in the other vehicles I've own. I don't run my Dodge with heavy loads all the times and per the manufacture schedule, I'm to do the 15k between changes. I, personally have a hard time going the 10k I do, but have done oil analysis to give me that 'friendly fuzzy feeling' it's ok. In time the person should 'feel' comfortable when they 'feel. the change is actually ok. Until that time, those who do it every 3 to 5k is COMFORTABLE ... to them. Even if there is waste in oil, money or time.

  • Owner

Also remember where we came from in oil design... Back in the 70's engine oils where really basic and didn't have much of a additive package.

http://www.upmpg.com/motor_oil_rate_gas.htm

As the additive packages improved over the years and design of engine oils the change internvals have been extended more and more over the years. I know old habits die hard but I use the factory specs as a safe point. So like 24V's are safe to run 7,500 miles by design.

Even the 96 is 6K to a oil change...

Posted Image

Then my 83 Goldwing 1100I is even 6K to a oil change...

The only vehicle I got that is a super early change in my 08 Honda Rancher at 600 miles... :wtf:

How do I find some one in my area to do oil tests?Sent from my Droid using Tapatalk

How do I find some one in my area to do oil tests? Sent from my Droid using Tapatalk

I have used Blackstone, Oil Analyzers Inc, and Oil Analysis Lab . Of those 3 I like OAI the best, most complete report at the best price.

I usually go around 8k filter and oil, really need to get an oil analysis off this next time so i can see how much longer I can go, I keep forgetting everytime an oil change comes around! lol-Jordan-

I have a question If you have an oil bypass which oil do you run? Is it worth running expensive oil like amsoil 5w 40 or even syn 15w 40 or just plain ole 15w 40. See I have the frantz bypass which I am going to put on at next oil change but I dont know if I should continue to use syn 5w40. I was going to buy amsoil 5w 40 synthetic a grade 4 oil or run amsoil's syn 15w 40 OE which I guess is a Grade three oil. The 5w 40 is 7 and change a quart and the OE 15w 40 synthetic is 5 and change a quart.

I'm on the opposite end of the spectrum and run a Group IV in everything I own!In addition to the longer life (which I don't really take advantage of with my current use) I feel there are other benefits.

  • Owner

I'm on the opposite end of the spectrum and run a Group IV in everything I own! In addition to the longer life (which I don't really take advantage of with my current use) I feel there are other benefits.

:thumbup2: I guess we'll always agree to disagree... But that's what is so wonderful of this little family... No need to...:spank::cool:

What is the TBN and how do you tell if it is a good one? Also How can you tell what grade the oil is?

Just changed my oil and filter today at 6k miles. I am running bigger injectors so I wanted to make sure its not getting to sooted up. I did catch an oil sample to go to Blackstone tomorrow to see how the old truck is doing.

So I figured out what the TBN number is Total Base Number and the higher the TBN, the more effective it is in suspending wear-causing contaminants and reducing the corrosive effects of acids over an extended period of time. So with that said is the TBN a big determining factor in buying motor oil or are there other factors to include when buying oil? The marine oil offered by Amsoil has the highest TBN number over the other choices on their website under the diesel oil tab. So does this make it one of the better oil's to buy? Putting the price aside some would say "the more expensive it is the better it is" does this always apply? So I had a few questions any guidance would be awesome not to high jack the thread :thumbup2: The reason I ask is I would like to put good oil in and take care of my motor as do many of you but I dont want to be wasting my money on oil that does the same job if not better than a higher cost oil.

The higher the TBN the longer the oil can last. It does not mean it's long lasting oil, contamination can kill an oil before the TBN runs out (fuel, soot, wear metals, etc).

New CJ oil's are lower in TBN because the vehicles are hard on oil thru regenerations.

So in an older diesel, with good filtration, TBN is much more important if you want to run extended intervals. If you just want to run standard or short intervals TBN is of little importance.

The higher the TBN the longer the oil can last. It does not mean it's long lasting oil, contamination can kill an oil before the TBN runs out (fuel, soot, wear metals, etc).

New CJ oil's are lower in TBN because the vehicles are hard on oil thru regenerations.

So in an older diesel, with good filtration, TBN is much more important if you want to run extended intervals. If you just want to run standard or short intervals TBN is of little importance.

Cool Thanks for the response :thumbup2: So how do find out what grade is the oil? Grade 3 or 4? So i think I am going to run the 15w 40 marine diesel oil with my bypass should be a good setup I also just purchased a Donaldson ELF the 15 micron filter so over all I am on the right path right? Thanks for your help!

That's the setup I run!That's a group IV synthetic.

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    • 4 weeks later...

    I try to get it changed right at 5k but sometimes I do go over. Like stated above its just habit.....:cookoo:Surprised to see so many folks waiting to change until over 7k though.. I guess that is due to oil bypass kits? Maybe synthetics?...... :shrug:

    No synthetics here. Rotella since new.

    That is what the old man and I both run. :thumbup2: Do you change your oil after 7k miles?

    Try to do it around 7500. I did not start that way when i bought it but changed over about 6 years ago. I dont tow alot but heavy when i do. The truck runs stronger than when new. Of cousre I have added a few things, they are in the sig.

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.