Pre-winter oiling(/spaying)?

[jps]

The new car is coming very soon and so is the Canadian winter (a lot of salt is used on the roads I drive on). I am NOT going to do any of the spray or electronic rust-proofing but I am curious about the pre-winter OIL spraying that people do. Is this a good idea?!?

Also, if done, what order should it be done in...wash, wax, oil, then wait quite some time before washing again?

Thanks everyone...
(posting in the Maintenance and Canadian thread)