I have been searching posts but have come up empty handed. Trying to find out the best type of lubricant to use for the tongue jack on my 99 Coleman Westlake. Had it for 3 years and took it out this weekend at the in-laws and the crank is very hard to turn. Tried Liquid Wrench Oil Penetrating Lubricant and sprayed it at the crank handle and down the leg of the jack, but it barely did any good. Any body have any tips? Getting ready to head out on our annual spring break camping trip.