Oil Change

[DK35vince]

</font><font color="blue" class="small">( Uh oh, do you all think I should change out of the 15-40 next time? Ck30? )</font>

You can if you want to. Nothing wrong with the 15-40 your runnning now.
The 5w-40 may be a bit better for starting in cold weather.

 

[VictorW]

I only used the 5-40 because of the cold weather we have here in winter which is the same as Vince being that he is @ 75 miles away. You are probably fine with 15-40 you're using considering it doesn't get as cold.