TheDrive and its partners may earn a commission if you purchase a product through one of our links. Read more. If you own an RV or a trailer and take it on frequent trips, then you need to lubricate the wheel bearings to improve the performance of your wheels. A good grease guarantees that the bearings remain undamaged and protects the metal from water and heat. It also extends the life of the bearings. Let’s take a look into some of the best wheel bearing greases on the market.   Ion-based grease may come in the form of lithium, white lithium, and calcium. Calcium-based grease has high water resistance but only moderate heat resistance. Lithium-based grease is water resistant and has a high tolerance for extreme temperatures. Lastly, white lithium grease is a multipurpose grease that resists corrosion and repels water.  Moly EP grease is formulated using a molybdenum disulfide, which is a compound that’s highly resistant to corrosion and has a high melting point. Moly EP grease can withstand extreme pressure, as the EP on the name suggests. It’s suitable for any object with a gliding motion, including ball joints and U-joints. Disc and drum grease is water resistan...