rga48 Report post Posted June 3, 2013 I was recently advised not to use silicone spray to lubricate HWH Jack Rods because it could damage seals. I checked on HWH website and found that they recommend only WD-40 when necessary. Cleaning Jack Rods ml47149.pdf Share this post Link to post Share on other sites
hermanmullins Report post Posted June 4, 2013 WD 40 drys and doesn't leave a film to attract dirt like silicone would do. Herman Share this post Link to post Share on other sites
Larry196 Report post Posted June 4, 2013 I use ATF Trans Fluid, it keeps the seals soft. I don't use a lot, because it will attract dirt, I clean them a couple of times a year. Share this post Link to post Share on other sites
hermanmullins Report post Posted June 4, 2013 Larry, I understand your thinking. However I would only use a lubricant for protection if I were going to be parked for a long period of time. When you were ready to move I would be sure to wipe the piston with WD 40 to clean and remove the dirt before raising the Jacks. Under normal travel your jack pistons will be up and covered with the fluid. Herman Share this post Link to post Share on other sites
