So I came to find this website, due to a search for a good marine grease. For my trailer wheel bearings, and other service areas on my boat and Jet Ski, i.e. pivot points, steering linkage, drive shaft splines for my jet pump and gimbal bearing on lower unit. After spending hours of research on the net and reading post after post on this forum. I am still as lost as I was when I started… From people saying grease with a lithium complex base isn’t good for being waterproof, but Bel-Rays extreme waterproof grease is a lithium base with water washout @ 4.2. Among other high water resistant greases that were lithium based. Aluminum complex greases were the best at being ‘waterproof”, to reading that calcium sulfonate was ranked the best for water washout!! So what am I trying to get at… Well what is the best “marine grade grease” and if it is that great at protecting marine components, can I use it on my truck and car as well. For example, wheel bearings, u-joints and suspicion components. Take for granted that I do all of my maintenance on my vehicles and I might have a tube of grease sitting in my grease gun all year round. With that being said I really don’t want a puddle of goo dripping from my grease gun all over my tool box drawer or garage floor. Here are the specs of a few greases that I’ve been looking at. What do you guys think about each one… Cheers Liquid Wrench Marine grease. NLGI Grade: 2 NLGI Certification: GC-LB Soap type: Calcium Sulfonate Texture: smooth Color: red Dropping Point (F): 554 Oil Separation % 0.2 Timken OK loads: 65 Water Washout: 2.8 Leakage tendencies: 6 Base Oil Properties: Viscosity @ 40c: 100 Viscosity @ 100c: 11.2 Flash Point (F): 435 I was impressed with some of the number from liquid wrench, I kept looking pass them, cause I thought to myself that they wouldn’t be a leader in grease. Not sure why I thought that, but looks like it has excellent water resistance, high Timken loads and dropping point. Seems to lose a lot of viscosity @ 100c. So what is wrong with this grease? From the numbers… likes like a great grease to me. Bel-Ray waterproof grease NLCI Grade: 2 NLGI Certification: N/A Soap type: Aluminum and Barium Complex Texture: Fibrous Color: Green Dropping Point (F): >500 Oil Separation % N/A Timken OK loads: N/A Water Washout: 4.2 Leakage tendencies: N/A Base Oil Properties: Viscosity @ 40c: 170 Viscosity @ 100c: 15.3 Index: N/A Flash Point (F): N/A Useful Temp. Range (F): -40 to 350 As with this one, high water resistance, but seems to thin out at higher temps. I would be concerned if I was packing my truck and trailer wheel bearings with this and having the brakes heat up and the grease thinning out… Just my two cents Schaeffer #274 NLCI Grade: 2 NLGI Certification: N/A Soap type: Aluminum Complex Texture: N/A Color: N/A Dropping Point (F): >500 Oil Separation %: 2 Timken OK loads: 60 Water Washout: 5.4 Leakage tendencies (grams): .6 Base Oil Properties: Viscosity @ 40c: 152 Viscosity @ 100c: 14.83 Index: 105 Flash Point (F): 530 Useful Temp. Range (F): -45 to 350 Reading from the website, #274 sounds like a great multi-purpose grease. Other than that, this grease looks like it can hold its own. I did not see a NLGI certification listed for this grease, is it recommended to be used on on-highway vehicles and suspension components? Valvoline Synpower Grease NLCI Grade: 2 NLGI Certification: N/A Soap type: Lithium Complex Texture: Buttery Color: gray-Black Dropping Point (F): >500 Oil Separation % N/A Timken OK loads: 60 Water Washout: N/A Leakage tendencies: N/A Base Oil Properties: Viscosity @ 40c: N/A Viscosity @ 100c: 12 Index: 135 Flash Point (F): N/A Useful Temp. Range (F): N/A This grease is listed to be used in disc brake wheel bearings, doesn’t list its operating temps or water washout. I had high hopes for this grease, but Valvoline was lacking on the product specs for this product, leaving me to move on to something else or just use it for basic general purpose. Valvoline’s Palladium Grease NLCI Grade: 2 NLGI Certification: N/A Soap type: Lithium Complex w/ 3% Molybdenum Disulfide Texture: Smooth, Tacky Color: Grey Dropping Point (F): 460-500 Oil Separation %: 6 Timken OK loads: 55 Water Washout: 5 Leakage tendencies: 2 Base Oil Properties: Viscosity @ 40c: N/A Viscosity @ 100c: N/A Flash Point (F): 400 Useful Temp. Range (F): N/A Then again, Valvoline is lacking on their product info, but they are saying, “It displaces other greases as a top-of-the-line quality products for severe applications and general purpose lubrication.” Recommended for all types of bearings and slide applications. Although it has a low flash point, I’m not sure if I want my front disc brakes or trailer brakes packed in it and rolling down a steep decline for a long time while having to ride my brakes… That would have me a little concerned. Not listing a NLGI certification, not sure if it is even suitable for disk brake wheel bearings. But for a Lithium complex it has GREAT water resistant properties! Schaeffer #221 Moly Ultra EP NLCI Grade: 2 NLGI Certification: N/A Soap type: Aluminum Complex Texture: Fibrous Color: N/A Dropping Point (F): >500 Oil Separation % 1.5 Timken OK loads: 60 Water Washout: 4.2 Leakage tendencies (grams): .6 Base Oil Properties: Viscosity @ 40c: 244.9 Viscosity @ 100c: 19.7 Index: 105 Flash Point (F): 530 Useful Temp. Range (F): 0-350 This looks like a very think grease, with a high flash point. Great water resistance and high Timken loads. It has a high, low end temperature rang though. So not sure if it would be good in an outdoor climate where I am located. Seems like it would be a great wheel bearing grease on my truck and trailer, with the high flash point and high water resistance. Not sure if it would be recommended in my climate though, due to its temperature rating. Redline CV-2 NLCI Grade: 2 NLGI Certification: GC-LB Soap type: Non-soap Texture: N/A Color: red Dropping Point (F): 900+ Oil Separation %: 5 Timken OK loads: N/A Load Wear Index: 71.2 Water Washout: 1% @ 105 degrees Leakage tendencies: N/A Base Oil Properties: Viscosity @ 40c: N/A Viscosity @ 100c: N/A Flash Point (F): N/A Useful Temp. Range (F): -100 to 500 I saved this one till last, because redline is making out that this is the best stuff on the planet. Saying it will increase bearing life up to 200%, about as close to waterproof as you can get with 1% washout… A temp range that you can use anywhere on earth, and a dropping point of 900. Why would anyone even consider any other type of grease…? It’s almost hard to believe. So with all that I listed, what are your thoughts about the greases I pointed out, good for wheel bearings and marine applications? Is there one grease I could be happy with or do I need to have a small verity? Any concerns that I left out or facts I forget to mention?