what are some of the signs that the injectors are worn or they are clogged? i try to run lucas through the tank at least once a month and then usually a bottle of the power service with cetane booster and it seems to be lately that my mpg's are going down....i live in oklahoma and back in september into october i was getting between 14.5 to 15.0 mpg, but since then its a fight to get it over 13.8 .... any ideas???

 

hey i dont mean to hijack this but i am wonderin the same thing. i also had been gettin better mpg and its been droppin! i also have white smoke at start up and a little at idle. how many miles on your truck?

 

i just rolled 185,000 about two days ago, it runs great starts fast and never have any troubles running, just seems fuel miles getting worse and also wondering about injector info

 

well since no one else is chimin in i did actually post a thread about my mileage the other day and in there some of the guys said i should pop test and clean my injectors and see if that will help.

 

check your filters, even the pre-filter in the tank. may help with mileage. also was it cold when you started it up and saw the white smoke? its usual normal to see white smoke on start up when cold but i disappears when warmed up.

 

I usually have my truck plugged in and even if not it never blows white smoke unless I leave it unplugged and don't let it "wait to start" and I just try to start it then it runs rough and chugs black and white smoke.

 

And I change my fuel filter on the side of the engine every other oil change, what other besides air filter is there maybe one I'm not thinking of