Hi there!
I live in Canada, and while my roadster will be parked over the winter, it’s still gets exposed to moisture and rain.
I am the second owner and I am wondering which under coating is best for rustproofing.

Are commercial outfits better than old-fashioned linseed coatings done bye a private person in their garage?

My car does not seem to have the little holes drilled yet for spraying inside. I guess that’s what the commercial outfits do they do a little hole so they can spray inside areas, but I’m having a hard time with the idea of making holes in the car no matter how small.

I just wanted to see what everyone recommends for rust proofing the under side of their crossfires specially up here in Canada.

Thanks so much