Grease pumps

I have a couple of old grease pumps that have been given to me over the last few years. Both have grease in them that is most likely decades old but still clean and no moisture has entered. Would anyone have an opinion on if this grease would still be good to use? Nice display Skinner. My two pumps are similar to the two at the left of your picture.

Bruce

Very nice Jon-Mark. Just a sneak peek of some of your cool things! JM

I think the grease would be ok--I had some Invader wheel bearing grease that was at least 20 years old and I kept using it up till it was gone and never had a problem with any of the wheel bearings that i repacked with it

Nice looking grease pumps and a great sign. My grease pumps are mostly an ugly rusty brown!!
I agree with Dan the grease should be OK as there are a lot of cars and trucks on the road with 40 year old grease in the bearings.

I used a sticky red grease supplied by our fuel supplier for years. Upon changing to a synthetic with Molly from Shaffer our consumption cut in half and the bushing and pin wear decreased by 75 % on the bucket end of our excavators and there was noticeably less greasy mess indicating the grease stayed in the work area. At $4 per tube I am sure you can afford one as it will last the life of a colector cat.

-interesting feedback Russell, thanks for the info!
-that's my grease of choice too..sticky so it stays in place....moly for the wear protection, and red so you can see the consumption...you can see it better etc...you can tell if operators are greasing enough or at all...
- and like you say at $4 a tube it affordable protection

that grease should be fine it may have seperated a bit though or gone firm. softer greases like lithium and soap often weep oil, firm greases which are normally clay based and for higher temps tend to go hard just work the with a clean stick or bit of scrap bar etc until a more even consistency is obtained.

extra tacky with 3 to 6 percent molybdenum disulphide is the best for hard working parts like track gear and bucket pins the beauty is moly tends to stay behind giving protection even if the grease itself is lost. remember grease is cheap parts are not.

there was a grease put out by the omega oil company it has a product in it called mega-lite which was super fine brass particles excellent in suspension bushes on trucks and bucket pins and the like i wonder if its still available. i know someone who used it reckoned it was magic stuff instead of greasing every trip he only had to grease once a week.