Doors wont close, can I spray anything to prevent them from freezing?

 

I usually get doors won't open.
Spray the hinges and the latch.

 

Not the hinges, it's the actual door handle that keeps it from closing properly. Going to try some WD-40. Thanks

 

They make a de-icer for door locks that can be used on the door handle as well. It is usually paint safe, but check the can label to be sure and test an inconspicuous area.
Pick up a can of Fluid Film (Lowe's and other home improvement/hardware stores). After things have warmed up and dried out (hair dryer on low if needed), use the 'straw' on the can to get into the cracks and lube everything you can't see. Then go for the hinges and don't forget the latch itself - the part that actually rotates when it contacts the post on the car. Wipe the rubber seals around the door down with silicone.
Outside of that, start a few minutes earlier than normal and keep an extension cord and hair dryer at the ready.

Welcome to the Oregon pages.

 

Jim thanks you for jumping in I was running late and didn't get as much details in as needed.