Do the 12vs hold the same amount of oil as the 24v?

 

im not sure but a 12v is 11qts with filter

 

Mine takes 12

 

Ok so it sounds like its the same. we put 10 1/2 qts in my dads 99 yesterday.

 

I always dump a full 3 gallons into my 12V....if youre a little over, its not going to hurt it.

 

i always put 3 gallons in too, but it says it takes 11qts with filter

 

Yea I noticed that when changing mine (91) and dad's old one (2001) that we just kept adding to mine when his was done a long time ago. His takes about one too two quarts shy of three gallons...mine took all three gallons.

 

I did a quick scan on our application guide and it looks like starting in 2004, the capacity goes from 10 to 12 qt(that's without the filter)
Hope they are correct

 

Over-filling will hurt performance. As the crank spins, it's rotational mass picks up the excess oil around it and "slows" it down, not much, but some.

This is true in all engines.

Cummins diesels take 11 quarts, from 89-2002 in dodge applications. Save the extra quart, and every 3rd oil change you only have to buy 2 gallons.

Mikey

 

if it's hurting my performance...I haven't noticed. I kept filling until the dipstick read full.