In my experience there is no great product that will prevent freezing of the lock, there are many. But one thing is common, lubrication.
I lube my locks and hinges every fall despite having keyless entry in my cars. I also wipe the seals with a rag lightly soaked in silicon spray or tire care product. No problems with locks or doors being hard to open so far.
If your locks are freezing I would suggest using WD40 when the temps go above freezing point. WD stands for water displacing, so it should displace any moisture that is in the locks. Spray a moderate amount, like 1-2 second burst from the can, and start locking and unlocking with the key several times. WD40 will also provide some lubrication.
Do not spray anything heavy in there, like white grease, because it will just lump up with cold temps and will not do anything useful in there. Once the temps are consistently above freezing you can use some other lubricant or stay with WD40.
I lube my locks and hinges every fall despite having keyless entry in my cars. I also wipe the seals with a rag lightly soaked in silicon spray or tire care product. No problems with locks or doors being hard to open so far.
If your locks are freezing I would suggest using WD40 when the temps go above freezing point. WD stands for water displacing, so it should displace any moisture that is in the locks. Spray a moderate amount, like 1-2 second burst from the can, and start locking and unlocking with the key several times. WD40 will also provide some lubrication.
Do not spray anything heavy in there, like white grease, because it will just lump up with cold temps and will not do anything useful in there. Once the temps are consistently above freezing you can use some other lubricant or stay with WD40.
