I think your brochure might be a misprint. I just serviced an 06 and only put 12 qts. total in the truck. Thats the same amount of oil as my 05, and 03's and 04's.

 

Dump the oil, put some new oil in run it, fill to top notch. Depending on how long you drain the oil you might get different results.
Dodgetech77, The injectors are exactly the same 03 05 whatever only the nozzles are different. Those that modify the nozzles say the 600 series nozzles hole placement and angle is hard to beat. That is what I was getting at. ks

 

What are the best aftermarket injectors?

 

I have an 07 and will say I put 12 quarts of oil in every time and it fills her up guess chrysler put the 03-04 oil pan on my truck...must of had a couple on the back shelf covered in dust they didn't use in 03-04 so they snuck em on the newer ones when they could to pinch pennies

 

My '07 takes 12 qts too.

 

12 qts here also.

 

Wow... talk about necroposts.

 

My 06 takes 12 quarts also, and I always get over 20mpg on the highway, mine is a 2wheel drive though. great truck.

 

That was my first thought!

My 06 also takes 12 qts FWIW

 

" This 06 is pulling 19 mpgs HAND CALCULATED". Thats' very good but I get a little better with my 03 dually w/4.10s. I've gotten over 22 twice but that's certainly not the norm. Craig

 

Hahahaha! I was a month away from purchasing my 06 when the last post was made before Bigbadbrams resurrected it.

 

It didn't change your mind did it?

 

The valves, the way the oil is injected to the rod,s and the piston lubrication just to name a few. A lot of good info on you tube, there are four videos that look like factory made tech videos. There is a lot of detail and they explain the difference between the different models.