The STP sounds pretty safe to me. The no alcohol part is very important, this sounds like a good winter additive.

 

Have used the STP Diesel treatment with both of my VW TDI vehicles and one is approaching 200K w/o any significant mechanical problems, so I will continue to use it in the new/old Dodge CTD.

I understand most owner opt for straight thru pipes when mufflers die, which sounds good to me. What brand/type of shocks have folks have good experiences with?

Also it looks like my truck has Hadley Dual air horns. Looks like there might be a compressor problem. Any recommendations for repair/replacement of the unit?

Thanks,

Mike