Missing oil - Dodge Cummins Diesel Forum
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post #1 of 71 (permalink) Old 11-17-2019, 07:03 PM Thread Starter
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Missing oil

I just changed my oil for the first time on my 3500. I'm a little worried because I'm missing a gallon of oil. That's right 4 quarts are just gone, I only recovered 2 gallons. I'm not sure if it was never properly filled from factory? With no MIL and no leaks whatsoever I don't know what the hell happened to 4 quarts of oil? I couldn't have possibly burned 4 quarts of oil with out a single MIL triggered. I have14k miles and I'm scratching my head wondering. The miles are all light load / no load and highway miles. Also changed the fuel filters and air filter. I was blown away with how disgusting the air filter was by the way.

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post #2 of 71 (permalink) Old 11-17-2019, 08:28 PM
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Hard to believe, but my guess is incorrect factory fill. From now on, check the dipstick before you do anything, so at least you know where it was and where to put it back to. 4 qyarts in 14K miles would show a trace on the floor or inside the tailpipe.

I have heard stories about how clogged the 2019 air filters are, after a few miles. I think the new air inductions system catches more debris and pushes it into the airbox a lot more that the last generation did. Those had the RAM active air that pulled air from behind the fender well area. The 19's get it from the front of the grill.

Question, how did you remove the oil filter? And did you use the mini drain tray under the filter? Also, when you opened the rear fuel filter, did more fuel drain all over the place (and you) or did the drain valve drain all?
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post #3 of 71 (permalink) Old 11-17-2019, 08:47 PM Thread Starter
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Quote:
Originally Posted by dgiturbo View Post
Hard to believe, but my guess is incorrect factory fill. From now on, check the dipstick before you do anything, so at least you know where it was and where to put it back to. 4 qyarts in 14K miles would show a trace on the floor or inside the tailpipe.

I have heard stories about how clogged the 2019 air filters are, after a few miles. I think the new air inductions system catches more debris and pushes it into the airbox a lot more that the last generation did. Those had the RAM active air that pulled air from behind the fender well area. The 19's get it from the front of the grill.

Question, how did you remove the oil filter? And did you use the mini drain tray under the filter? Also, when you opened the rear fuel filter, did more fuel drain all over the place (and you) or did the drain valve drain all?

I use a fluted filter socket and a ⅜ ratchet from genos garage. Once the filter is removed I use a filter cap tool from genos garage (the best invention for cummins oil changes ever). I take the cap off pre fill my new filter and clean and attach the filter cap on and fish the new prefilled filter in the the engine compartment. Once in the frame rail I remove the cap and start screwing the prefilled filter on the engine. I also installed the femco drain plugs from genos garage. We run these drains on all of our bus fleets with over 1500 buses with Cummins ISL-G motors here in Southern California and they are amazing. Also the rear fuel filter drain did pretty decent. I captured 16oz of fuel but as soon as I started turning it more fuel did come spilling out. Next time I do it I will close the drain and turn it a few rotations and reopen the drain to help eliminate the additional diesel fuel leaking everywhere.

At this point I assume it was not properly filled from the factory. Moving on I know now that no matter what the air filter has to be replaced every oil and fuel filter change. You are right about the new air dam. But due to the increase on power I think that's why they may have wanted additional air to the engine and the previous ram air didnt cut it.
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post #4 of 71 (permalink) Old 11-17-2019, 08:56 PM
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Missing oil

Quote:
Originally Posted by dgiturbo View Post
Hard to believe, but my guess is incorrect factory fill. From now on, check the dipstick before you do anything, so at least you know where it was and where to put it back to. 4 qyarts in 14K miles would show a trace on the floor or inside the tailpipe.



I have heard stories about how clogged the 2019 air filters are, after a few miles. I think the new air inductions system catches more debris and pushes it into the airbox a lot more that the last generation did. Those had the RAM active air that pulled air from behind the fender well area. The 19's get it from the front of the grill.



Question, how did you remove the oil filter? And did you use the mini drain tray under the filter? Also, when you opened the rear fuel filter, did more fuel drain all over the place (and you) or did the drain valve drain all?


The ram active air pulled air from the front grill, unless active air was active, then pulling from the fender well area as well.


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post #5 of 71 (permalink) Old 11-17-2019, 09:17 PM
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I have to ask: Was it low on the dipstick 14,000 miles ago, did it happen gradually, or did the oil disappear right before the oil change?

Also, was the oil drained hot or cold?

Maybe if we start telling people that the brain is an app, they will start using it?

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post #6 of 71 (permalink) Old 11-17-2019, 09:19 PM
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Quote:
Originally Posted by Zackolas View Post
I just changed my oil for the first time on my 3500. I'm a little worried because I'm missing a gallon of oil. That's right 4 quarts are just gone, I only recovered 2 gallons. I'm not sure if it was never properly filled from factory? With no MIL and no leaks whatsoever I don't know what the hell happened to 4 quarts of oil? I couldn't have possibly burned 4 quarts of oil with out a single MIL triggered. I have14k miles and I'm scratching my head wondering. The miles are all light load / no load and highway miles. Also changed the fuel filters and air filter. I was blown away with how disgusting the air filter was by the way.
You drove it 14,000 miles and never checked the oil, not even once?

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post #7 of 71 (permalink) Old 11-17-2019, 10:10 PM
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Originally Posted by Zinga View Post
You drove it 14,000 miles and never checked the oil, not even once?
Beat me to it......

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post #8 of 71 (permalink) Old 11-17-2019, 10:43 PM
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Quote:
Originally Posted by Zinga View Post
You drove it 14,000 miles and never checked the oil, not even once?
Well, we don't know that yet. Until we find out if it was low from the start, or it happened later.

Maybe if we start telling people that the brain is an app, they will start using it?

'14 1500 V6, '17 3500 C&C, plus a '19 3500 6.4 in the household.
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post #9 of 71 (permalink) Old 11-17-2019, 11:00 PM
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Well, we don't know that yet. Until we find out if it was low from the start, or it happened later.
The way I interpreted it was that this is the first time he changed it himself.

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post #10 of 71 (permalink) Old 11-17-2019, 11:10 PM Thread Starter
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This was the first time I changed the oil on this truck. The oil was drained cold and was full about a month or so ago just as it was full this afternoon after it was changed it. The truck has been in the shop several times too. I would have expected it to be checked then possibly too, the tech did sign legal documents stating to have completed a multipoint inspection which include enging oil check. I just can't believe I could possibly be missing 4qts and not have a single leak or check engine light. I'm still baffled.
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post #11 of 71 (permalink) Old 11-17-2019, 11:13 PM
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If you drained it cold, that explains part of it. At least if you didn't let it drain for a really long time.
Also, did you count what was in the filter?

Not that I'd expect an entire gallon to go missing that way, but a couple of quarts would be feasible, I think.

Maybe if we start telling people that the brain is an app, they will start using it?

'14 1500 V6, '17 3500 C&C, plus a '19 3500 6.4 in the household.
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post #12 of 71 (permalink) Old 11-17-2019, 11:38 PM
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FWIW, I've checked the oil on my 3500 and learned the first week of ownership that if the truck is on a very very slight incline, the dipstick will report 1 1/2 - 2 quarts low. Our driveway has a slight decline from the street but the slope decreases and is very slight at the garage. When I checked it, the front of the truck was pointed toward the street. Again the incline where I checked it is very very slight. I thought it was odd that it was low, so I checked it at a gas station and was normal.

My Ford isn't as sensitive.

So, it might report the opposite if it's on an decline. If the oil was added and then checked on an decline (rear higher), it could report full, even though it's slightly low.
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