Thelaw0341
Member
I recently purchased a 2020 Raptor with 78k miles. The check engine light came on and the code from Oreillys showed a bad O2 sensor. Took it to a shop and they said it was a code for a catalytic converter and also the grille shutters. My mileage went from about 15-16mpg (lift and bigger tires) down to about 10mpg. Wondering if anyone had any advice or guidance. Heard Ford has an emissions warranty that covers up to 80k miles. Any help would be appreciated. Have a 3k mile power train from the dealership and the extended ford protect warranty as well.