We're in Florida, so no cold weather, but we do keep it jacks down and leveled in the driveway, hooked up and AC running, I was told not to use WD40 or silicone spray on the jacks as those would collect dirt, but there is a Teflon spray they sell at Lowe's that works really well and dirt doesn't stick to it. Same thing they use on bicycle chains to keep the lubed and clean. Directional long range spray nozzle, too.
2015 Legacy SR340 360RB
2014 Jeep Wrangler Unlimited Toad
Gigi, Poppy and Sadie Lady...On the road, but not full time!