I am going to have to put one of my cars outside with a cover for the rest of the winter. It has chrome wheels on it so I would like to know if anyone has any suggestions on something I can apply to the wheels to keep them from rusting. I don't have any other tires/wheels to swap on the car so I'm hoping there is something that will work. The car won't be driven so salt is not an issue, just rain or snow. If it does snow, I will clean it off the wheels when the snow stops and I will dry them off after each rain. Suggestions?

.fluid film in a spray bomb.

I've used the Krown stuff--it comes in an aerosol can, too.

Whatever you spray on there, make sure you clean it off your brakes (especially if they are discs) before you try to drive it.

One winter, I had to put my open trailer outside my shop under a tarp; sprayed its chrome steel wheels with WD40.
Washed trailer & wheels in spring and they were fine.

I was thinking maybe WD-40 might be an option. Probably what I will try since I already have a can.

I agree with Fluid Film. Wont wash off as easy, like WD40. Grab a can at Lowes.

wd/40 works fine

Take care not to let your tires sit on the ground without some kind of barrier between the tire and the earth. I've used galvanized sheet metal, plastic sheets and concrete stepping stones.

Maybe get some of the tire covers you see people put on the RV and boat trailers to keep the sun from rotting the tires? Even some trash bags over the wheels would keep the water off. Not sure you'd want an air tight seal as it may trap humidity.

Keep the WD40 off of the brake rotors

The Krown stuff is like spraying vegetable oil on something. I had two cars done with Krown - after a short while, the stuff rinsed right off. It does not set-up any kind of film. Very unimpressed with Krown.

Four concrete blocks, and take the wheels off.