2015 3500 making oil?

[apgambino]

Hi all,

I have been a lurker for sometime before I bought my truck and now I have actually found something I'd like to ask the masses. I have given it several searches, both on this forum and the Web in general but without any luck, so hopefully someone can point me in the right direction.

I have a 2015 3500 mega cab 4x4 with the aisin, c. 23k miles. Since I bought it new it has always showed over full on the dip stick. At first I thought my garage was not level enough, but it is. I've also taken it two two different dealers (due to a move) for its three oil changes and it always still ends up showing oil about 3/8ths above the safe line.

The oil doesn't smell like fuel, and I haven't noticed any degradation in performance or mileage. I do tow a 15k toy hauler but stay within dodge's recommended limits.

So what gives? Could both dealers and the factory be putting too much oil in or is that too much of a coincidence? I don't want to keep running it as is but I'd like to hear any insight you all may have before I take it in to the dealer. Thanks in advance!

 

[lmabey]

before they switched to using the DEF fluid there were issues of fuel dilution in the oil. If its showing high immediately after a
a change they must be over filling it. You could always take an oil sample and get it tested. I use oil analyzers.

Good luck

 

[sag2]

Usually noting to be concerned with. Watch it and see if it stays in the same area or grows. As was mentioned the pre DEF trucks had the concern fairly often and it was usually related to driving habits. Make sure you check it after it sits for at least 20 minutes, better over night, and in the same spot. If it still registers high you can leave it alone with no adverse effects, or drian out a quart (easier said than done) if it makes you feel better. At the next oil change have them add 11 instead of 12 and take the extra quart home. Remember as you mentioned, Cummins does not have a "full" mark, just a "safe" zone. As long as it is anywhere in that cross hatched area the oil level is good.

 

[TCDiesel]

Don't be guessing, its the total foul ups of all time, OA (Oil analysis)

If the OA comes up clean good, if NOT report back their just a few things that cause fuel in oil.

Contrary to web thinking fuel in oil lowers the viscosity instantly , I've seen OA at 0W... short / long term fuel in oil will suck up your wallet.

 

[dougsram]

For my 2011, 12 quart oil changes immediately brings the oil level slightly over the Safe Zone. Eleven quarts registers about 3/4 into the Safe Zone, so that is the amount I use every oil change. Even though I let every drop of dirty oil drain out, I believe about a quart of oil stays in the system. Evidence is in how dirty the oil looks on the dipstick after my first drive on a new oil change. There will be some who respond, "put in 12 quarts and don't worry about it." From my research and stated in my manual, the Safe Zone coincides with 10-12 quarts.

 

[Dieselnerd]

Don't forget that most of these trucks, all generations, siphon oil out of the filter after shut down. This also raises the oil level. On my truck, if I check the oil after sitting overnight it's above the safe mark. If I check it right after shutdown, it's not even halfway into the safe zone. Wait about 20 minutes and it's almost to the top.

I'm in the "put in 12 and forget it school". So much of the oil is taken up into the system when it's running that there is no danger of "aeration" from the crankshaft that some seem to worry about. Unless your oil level keeps getting higher, nothing is wrong.

I did have a fuel dilution problem on my 2005. In that instance, the level was a little higher every morning. If it stays the same, it's fine.

 

[Cummins12V98]

If you are having someone else do the oil changes they drop the plug and as soon as it stops pouring the plug goes in and they add 12 quarts. That my friends is why his oil level is overfull. Even draining overnight there are a few ounces left in the pan, that is why "I" only add 11 quarts and 24 oz when doing a change. Mine is right on full that way.

#ad

 

[apgambino]

Thank you all for your advice. On my way out the door this morning I decided to check the oil and it seems lower than it usually is.

#ad


I guess I may just be a bit paranoid. I suppose at the next change I'll try and talk to the tech and take a sample to get analyzed so I know where I stand. I hate having others do work for me that I can do myself but if anything goes wrong during the power train warranty I don't want to end up with the bill!

 

[sag2]

I can count the number of oil related failures on um, no fingers. Not much to worry about but get it sampled if it goes up more than an inch before the next change.
Even if it comes up an inch with fuel it will not harm the engine.

 

[SnoKing]

From deset supplement:

"Checking Oil LevelTo assure proper lubrication of your vehicle’s engine, the
engine oil must be maintained at the correct level. Check
the oil level at regular intervals. The best time to check
the oil level is before starting the engine after it has been
parked overnight. When checking oil after operating the
engine, first ensure the engine is at full operating temperature,
then wait for 30 minutes after engine shutdown
to check the oil."

 

[Cummins2014]

If you are having someone else do the oil changes they drop the plug and as soon as it stops pouring the plug goes in and they add 12 quarts. That my friends is why his oil level is overfull. Even draining overnight there are a few ounces left in the pan, that is why "I" only add 11 quarts and 24 oz when doing a change. Mine is right on full that way.

#ad

Thats exactly where it shows on my dipstick with 12 quarts, I must have a little bigger oil pan then yours to handle that extra 8 ounces :-laf

 

[Cummins2014]

Thank you all for your advice. On my way out the door this morning I decided to check the oil and it seems lower than it usually is.

#ad


I guess I may just be a bit paranoid. I suppose at the next change I'll try and talk to the tech and take a sample to get analyzed so I know where I stand. I hate having others do work for me that I can do myself but if anything goes wrong during the power train warranty I don't want to end up with the bill!

I do all my own maintenance ,and keep very good records, and all the receipts showing what brand oil, filters etc. I can prove everything thats been done.

 

[TCDiesel]

I run My level as Shown... Even My gas engines entire fleet of Big trucks both commercial and construction are 1/2 to QT additional., But if your level raise its making oil and needs to be corrected.

 

[Cummins12V98]

^^^^^ can't quite figure what reason to run a quart over full?

 

[Newsa]

I can count the number of oil related failures on um, no fingers. Not much to worry about but get it sampled if it goes up more than an inch before the next change.
Even if it comes up an inch with fuel it will not harm the engine.

An inch seems like alot? This would be a little less than a quart of fuel in the oil. Not challenging your experience. Just seems like if you have 12.8 quarts and only 12 quarts of that is oil, you would have 6.25% fuel dilution. Is 6+% fuel dilution dangerous?

 

[Newsa]

This past weekend I decidec to switch to Redline 15w40 full syn. It is bizarre stuff. When putting some on oil filter seal, it feels (room temp) like 75 weight gear oil. I switched because i also see fuel dilution of crankcase oil after several active regens. Reports are that Redline stays thick even with some fuel in it

 

[TCDiesel]

^^^^^ can't quite figure what reason to run a quart over full?

Just to be different.. And after tearing down many engines over 40 Years I've learn that different is good. I've worked at Cat, Cummins, Mack and learn what's commonly practice, at times doesn't give you the edge You want.

 

[Cummins2014]

Just to be different.. And after tearing down many engines over 40 Years I've learn that different is good. I've worked at Cat, Cummins, Mack and learn what's commonly practice, at times doesn't give you the edge You want.

And Cummins12V98 is stressing over putting in a complete 12 quarts

 

[Newsa]

Just to be different.. And after tearing down many engines over 40 Years I've learn that different is good. I've worked at Cat, Cummins, Mack and learn what's commonly practice, at times doesn't give you the edge You want.

If you REALLY want to be different, run it up a hill with no oil and no coolant! :-laf

Running a quart over full isn't that different. Alot of people who don't ever look at their dipstick do that

 

[TCDiesel]

If you REALLY want to be different, run it up a hill with no oil and no coolant! :-laf

Running a quart over full isn't that different. Alot of people who don't ever look at their dipstick do that

WTF did this come form...Why would anyone destroy the motor to be different....Newsa you go 1st on the No oil no coolant let me know how many miles and minutes you go before its lock up, this comment is just as stupid as yours. Gzeee