Oil cooler drain valve?

[50shooter]

This is the only one I've ever had. Don't know what it's for. Any ideas as to why it is located on the top and not the bottom?

Thanks
Jason

 

[Westech]

That is a sampling valve used to get oil to send in to the jokers the army puts in charge to tell you when you need to change the oil in a truck. Never mind it only has 1200 miles on it but its the same oil it came with from the factory back in 2003.... sorry it brings up bad things when i talk about that S.O.P.

 

[DieselBob]

I was also wondering what that was for. Thanks for the intel Westech.

 

[deuceman51]

Yup, it's a oil sampling valve for AOAP or Army Oil Anaylsis Program. It isn't just used for telling you when to change your oil. Our results detect antifreeze(cracked block ect) Copper(bad bearings), fuel(bad rings) and all other things that are going wrong inside the motor. It is actually a really good preventative maintenance tool we use. That's what I get to do at our next guard drill, lol.