Im freeking out the truck seems as though it is smoking lessI havnt seen any loss of performance, not studdering, no issues with idling, no white smoke at startup, What could it be? I havnt changed a thing, Ive been using the same set-up for 15k. Mabey the winter gas? Problem with the programer? Any suggestions?

 

mine stops smoking heavy when the station i fill up at finally switched to ULSD.

 

Im just worried mabey the lift pump? Would I notice right away?

 

Seems like every year about this time people start notice their truck not blowing as much smoke. Where there is no loss in performance i am going to say that it is due to the fact that the ambient temperature is dropping, and cooelr denser air means a more complete burn that ultimately results in more power and less smoke.

 

I fuel up at a station that switched to ULSD and mine stopped smoking. Plus I add PS in mine and that will lower also

 

it's the colder, denser air.

 

That makes sense to me. Thanks everyone for the help.

 

I agree with the colder temp reasoning but I would also suspect your tranny is not as efficient as it used to be ( I assume its still stock by your sig ) I know when i first but the Juice on mine it smoked like crazy. Seems to be less and less all the time. I think my tranny is seeing some wear and not putting as much power to the ground, thus not loading the engine as much and causing smoke. Just something to keep in mind and save your pennies for!