Oil Consumption Rate

6 quarts every 3k miles ??? you have issues mate! I had 180108 miles on mine and used 1qt every 3000 miles Ive had 3 of these trucks all about the same mate. does it smoke when you start it? sounds like an oil ring issue?

thewelshm
 
Last edited:
I have never had an oil consumption issue with my engine. Like Rottenronnie stated, many usage and maintenance factors. I have been very meticulous with oil and changes. NO dry starts and have the Monster RX catch can. Funny it never gets much oil in it ;)
 
I realize there are far too many variables that would contribute to oil consumption to ever know exactly why my engine uses as much as it does. It’s never smoked on start ups or while driving that I can tell. When I bought the truck I noticed early on that it would use 1-2qts every 3k mi. I never thought too much about it until the last 10k mi or so. It was a one owner truck from GA so I figured maybe it wouldn’t be hurt too badly. In the last 60k mi I’ve not missed a service interval on any system that I’m aware of. With that said, if the first owner just beat on it and didn’t maintain it mechanically then I am reaping the benefits of that. No amount of maintainance can undo damage. As 505 stated, technically, I’m still in spec using 1qt/500mi, as crazy as that sounds! I expect it’s just tired and getting close to a rebuild.
 
Unfortunately, most of these trucks were "rode hard and put away wet". Ignorance on oil and oil level, causes for cavitation, dry starts, improper warm up before high RPM use and over revving are many reasons why second and third owners like yourself have these issues. Besides the fact that the factory crankcase breather system will suck and combust plenty of oil if the engine has excessive blow by.

It's a shame really...
 
I have as of yesterday 157,000 miles and 80% of my driving is in town now. Only using 1 qt every 3k miles.
 
rottenronnie said:
I like long posts. The more information, the better.
I could be crowned the long post King! People don't have to read a dang thing if they don't want to but it's there if they do.

As odd as this sounds, have a GOOD look around your oil filler cap. Oil coming from there can be very hard to notice.
The black o-rings in the filler cap get old and dry out.
The new ones (like on the SRT-8 engines) are green and Viton and provide a much better seal over time.

Start there if you have an original black one.

It doesn't help that the dipsticks are also tough to read but it's great you top it up when needed (whatever the reason is).
Click to expand...
Don’t forget the oil lines ..
 
When I first bought the truck I was using the 0w-40 Mobil one as called for ... I noticed I was using around a quart and a half between oil changes .. changed ever 3 k miles .. 9800 miles on the truck then ... I changed to the royal purple and it was much less oil loss between changes ... since then I went to 15w-50 Mobil one and have used it for years with even less oil consumption ... hasn’t changed since I switched .. 68 k on the truck now .. I had to replace the oil lines do to them seeping . Used jtvsp stainless oil lines .. not a leak since ..
I took a trip to va from Florida and never checked the oil until I returned and was only a quart down .. I drive it reasonably and never raced it .. slight mods were done .. I chose the 15w50 do to the hotter than hell Florida summer with a compromise to the mild winters ..
 
I’m going to have to give the heavier weight oil a try. Last fall my dad and I took a trip from North West TN to Cincinnati, OH to pick up a car and I used 1.5qts in that 14hr round trip.
I’ve never “raced” the truck at a track but I do still play around from time to time.
 
rottenronnie said:
Hello:

I have a buddy on this forum (OldColt) that has a 2006 RC.
His manual states 10 liters (10.5 U.S. quarts) which is wrong and puts these engines over full.
That much oil just overpowers the crank-scraper, gets the oil airborne and will CAUSE them to burn oil.
8 liters (8.5 U.S. quarts) is plenty and can be considered FULL.

Just sayin'
Click to expand...
10.5 quarts for the QC and 8.5 for the RC ... is the numbers I have heard and read for years .. I use 10.5 in my QC every oil change and the dip stick shows full ..
Ronnie any idea why there is a difference between RC and QC oil amounts ?
 
VIPR PWR said:
10.5 quarts for the QC and 8.5 for the RC ... is the numbers I have heard and read for years .. I use 10.5 in my QC every oil change and the dip stick shows full ..
Ronnie any idea why there is a difference between RC and QC oil amounts ?
Click to expand...

There isn't a difference. The oil pans for the RC and the QC are the same and the capacity is the same.

Make sure the dipstick tube is well seated into the block.
 
Yea, 10.5 is too much
 
rottenronnie said:
There isn't a difference. The oil pans for the RC and the QC are the same and the capacity is the same.

Make sure the dipstick tube is well seated into the block.
Click to expand...
Interesting ... the dip stick is full seated and reads full with 10.5 qts ... I was wondering about the capacity years ago and if the oil pan or something else was larger to have that capacity difference . Never made sense when there was a thread about it years ago .. I think even the cd manual states 10.5 qts .. not sure about the owners manual
 
Found these specs online.. it’s what I’ve been using since I got the truck way back .. seems every discussion I read on here matched the 10.5 for the 05 QC ... hmmmm .. I could have saved a few bucks if the 8.5 is correct ..
 

Attachments

  • 8EB3240E-8413-406C-A6C5-BD54F0546D24.png
    8EB3240E-8413-406C-A6C5-BD54F0546D24.png
    796.9 KB · Views: 4
Hello:

I put 10.5 into a pan I had on my workbench and it is too full with that amount, period.

The pans are the same for all the Gen III trucks.

Some of the manuals state 10.5 which is wrong as do the specs (like you provided).

There were a few different dipsticks and perhaps yours is shorter than most which would indicate full with 10.5

As mentioned earlier, 10.5 overloads the crank scraper, flings oil onto the cylinders and overloads the oil-rings. That can cause the engine to burn oil.

In the end, it's up to you to do what you think is right.

Cheers.
 
rottenronnie said:
Hello:

I put 10.5 into a pan I had on my workbench and it is too full with that amount, period.

The pans are the same for all the Gen III trucks.

Some of the manuals state 10.5 which is wrong as do the specs (like you provided).

There were a few different dipsticks and perhaps yours is shorter than most which would indicate full with 10.5

As mentioned earlier, 10.5 overloads the crank scraper, flings oil onto the cylinders and overloads the oil-rings. That can cause the engine to burn oil.

In the end, it's up to you to do what you think is right.

Cheers.
Click to expand...
 
How would I identify the different dipsticks .. sounds like a dodge mess up to me .. if that’s the case since everything else looks fine ,, I need to replace it ..


rottenronnie said:
Hello:

I put 10.5 into a pan I had on my workbench and it is too full with that amount, period.

The pans are the same for all the Gen III trucks.

Some of the manuals state 10.5 which is wrong as do the specs (like you provided).

There were a few different dipsticks and perhaps yours is shorter than most which would indicate full with 10.5

As mentioned earlier, 10.5 overloads the crank scraper, flings oil onto the cylinders and overloads the oil-rings. That can cause the engine to burn oil.

In the end, it's up to you to do what you think is right.

Cheers.
Click to expand...
 
Let me know what the measurement is from the base to the tip.

(This would be the perfect place for an emoji)
 
Would the oil cooler behind the passenger headlight retain any oil when the drain plug is removed? If so that might be the diffence in engine oil capacity and just refilling with 8.5qts after an oil/filter change. I kinda doubt it would hold 2qts though....
 
34" from the top stopper (where it touches the top of the dipstick tube) to the tip.
If you were to put a mark 33" from the top stopper towards the end of the stick, THAT would be the correct spot for FULL with 8.5 U.S. Quarts in the pan.

Cheers
 
You must log in or register to reply here.

Latest posts

Support Us

Become A Supporting Member Today!

Click Here For Details

Random Media

The # 5 and # 6 main housings wre damaged from a broken crankshaft. The housings were fixed by align boring them.
IMG 0393
vin sticker
1856.jpg
Back
Top