the scottoiler stuff is water soluble i believe which means whenevr it gets damp (every day in winter really) it gets washed off. I used it last year and found it made no difference at all and rust spots were happening during the time my bike was parked at work.
My advice is wash it with COLD water after every ride, apply wd40 to bolts etc, definitely strip the brakes down after winter and grease up the pins etc or you'll never be able to change the pads again. I tend to use chain lube on areas prone to rust, looks horrible but stays put and can be cleaned of easily enough when the weather improves.
Enjoy the bike dude