Forum Discussion
Cummins12V98
Jul 20, 2013Explorer III
gmcsmoke wrote:Cummins12V98 wrote:
gmcsmoke wrote:Charlie D. wrote:
My 2013 owners manual says nothing about semi or full synthetic oil. It does state to use 15w40 CJ-4.
Your manual says to use 15w-40 zero and above which is dino oil. It also says to use 5w-40 below zero which is a synthetic oil
So you don't think there are any 15-40 Synthetic oils?
perhaps you should go back and reread. The original statement noted nothing in the manual stating the use of semi or full synthetic oil. I pointed out the manual recommends using either dino and full synthetic based on environmental conditions.
but you can spin it however you'd like.
"Your manual says to use 15w-40 zero and above which is dino oil. It also says to use 5w-40 below zero which is a synthetic oil"
I am just going by what you said. "15-40 zero and above which is dino oil" is what you said.
If that is not what you meant that is fine.
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