[[email protected]]

I have been putting amsoil 15/40 synthetic in my truck. However I have moved into a new apt and I wont be able to plug my truck in as much during the winter. I was wondering if anyone cud tell me if its ok to switch to 5/40 for the winter. And back to 15/40 when its summer or Shud I stay with what I have.

 

[BUBBA3M]

Either way, I have done both and have had no starting problems in the winter. We typically see 10 below, sometimes colder here.

 

[HD Dmax Machine]

X2 Either way.

 

[mrmanners]

Yep you will be fine. Actually have a lot of guys running 5w-40 yr round.

 

[KryPTiC]

Depends how cold it gets where you are... -30C ... lighter oil is a lot better