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Thanks for all the replies.
Let me start out by saying “no” I didn’t check all the things you’re asking about.
That being said, I’m an old diesel mechanic and have seen first hand what oil changes have on the life of engines. I’ve been changing oil in all my vehicles at 5000 miles. They all went 200K+ with no engine issues. My 06 ford 6.0 still has the original turbo. Diesel’s especially contaminate the oil with carbon (ie: black oil). Any way, it’s my money my prerogative.
I know every engine consumes some oil. Some more than others. Our Subaru uses a quart in 6000 miles. The manual states this is normal. Been doing it since new.
I’ll keep a closer watch on the Ram to see if it truly is using 2 qts in 5K miles.
I was just asking if other 5th gen owners noticed it.
Have you done a Blackstone oil analysis with the TBN analysis as well? The TBN determines whether your change interval is retaining the oil's qualities. It's cheap and very informative.Also my question. The prev owner of my truck also changed the oil every 5k miles. Good for me.. but burned a hole in his wallet for no reason I'm sure. I change every 15k miles.
I too have seen them with more fluid due to a small amount of fuel getting into the oil, but never lose oil like that. If it is, there are only 3 logical solutions. It's not filled properly to begin with, there's a massive oil leak somewhere, or it's burning oil. Again though at the rate of loss that the OP is claiming one would think that it would be really obvious either by smoke or a giant puddle in the driveway.
My guess is that the dealership didn't fill it all the way. If there's no smoke or oil puddles I can't think of a way that it would lose 2-3 quarts of oil in 7k miles.
The '19+ CGI Cummins has low tension rings to save .00001 MPG. There have been some that used oil. I hitched mine to the toy hauler and did a couple hundred mile test pull in the dead of AZ Summer when it was new to break it in. The Cummins is built to work. Putt-putting around is not their strong suit. With 10K OCIs, it would use maybe a quart, never enough to add.
The oil might not break down before 15,000 miles, but it can still get dirty & don't want to pump it through the engine that long, I do the oil & fuel filters between 9,000 & 10,000 ( that's less that 2 months)15K oil changes and not a mile sooner. Oil analysis has proven over and over the oil is more then good to go at that interval. The people that designed the engine know what they are doing and why they put that interval in the manual. This isn't 1968 any more.....
Are you actually "checking" the oil on the dip stick to see that it is low or just going by what you got out of it?
If you are truly using that much oil (I'm skeptical) you have a huge problem and need to get it looked at under warranty asap. My 2016 has had nothing but 15K+ oil changes and never used any significant oil after 155k+ miles.
Diesel oil is dirty the second it's pumped through the engine. You can fill the engine, run it for 30 seconds and what will come out of the drain plug will be black. What's important is that the additives aren't breaking down.. not the color.The oil might not break down before 15,000 miles, but it can still get dirty & don't want to pump it through the engine that long, I do the oil & fuel filters between 9,000 & 10,000 ( that's less that 2 months)