Hi! My truck is aproaching 180,000 miles and it has lower than expecterd MPG (11mpg vs 15mog it usually made) and some lack of HP i'm thinking about pull the trigger and do some admision cleaning.

Wich one is the best for my truck?

By the way, I already change apark plugs some days ago
Erased the 4 cats (suspected cloged I'll put news as son as i found the fix to poor mileage)
Change coils some 50,000 miles ago with new OEMs

Thanks for the input.

 

When was the last time you changed your fuel filter?

 

I can't remember maybe 20-30,000 miles ago. I'll do tomorrow.

 

Might want to check the condition of the air filter.