So I have a brand new (4 month old) Scion tC. Here in this part of Ontario, Canada the roads are very bad in terms of salt and rust.
I know the rust modules have gaurantees and will give you money back if your car produces any rust over a given amount of time but i've never tried one and it seems like a gimmick.
Oil sprays work and not work in my opinion. All you are doing is caking on oil and hoping for the best. It also creates a gross mess in the engine bay.
What do you guys think?