
Originally Posted by
Mile2
Bro, actually your car is already equipped with "factory rustfroofing" as stated in our owner's manual, what casa/dealers offers is "tar undercoat" for additional undercoating protection/sound deadening.
IMO, I am not sold to having tar undercoat simply because you will be covering the entire under body with black tar and it will be too late to see any sign of rust formation during the warranty period. And in worse cases some tar tends to crack in time and trapped water and minute metal particles from road dirt gets in between and oxidation takes place.
I have a decade old Lancer and never once get that black tar undercoat, no rust up to now...maintenance was just enamel paint undercoating every 2 years.
G and V have factory installed backup sensors.