We now have available the same polyurethane grease we supply with our upper arms in a grease tube to load into a grease gun and charge through zerk fittings. This is the BEST grease to use for any polyurethane bushings from upper arms to leaf springs. It contains versatile water-proof, non-melting Teflon and is formulated to seal out water and to lubricate under the most adverse conditions. It’s superior adhesive and extreme pressure qualities, combined with it’s urethane compatibility makes it the only one to use.
Many greases are not compatible with polyurethane bushings and can actually cause squeaking and deform them.