Never needed a grease gun until recently when I replaced the non-greasable u-joints on my Tacoma with Spicer units with zerk fittings. Then we got the 4runner this year, which, despite being 2WD, actually does have greasable u-joints.
Bought this and a grease gun from Harbor Freight, and I’ve been using this on the u-joints of the Taco & 4Runner, but the oil has been separating and leaking out of the grease gun, making a real mess.
Not to mention, the fact that the oil is separating and leaking out of the grease gun makes me conclude that it’s highly likely that the same thing is probably happening at the u-joints as well, probably reducing its effectiveness quite a bit.
Suggestions for an NLGI #2 moly-fortified lithium-base grease that the oil won’t separate from and leak everywhere?
View attachment 63044
I had the same problem with a Hobo Freight gun and Mobil 1 grease. Leaked like a sieve. I’m not sure if it was the gun or the grease or both. I’ve read multiple times on different websites that Mobil 1 grease is bad about separating and leaking.
So I replaced them with a Lincloln 1134 gun and a tube of Mystik JT-6 and it doesn’t leak a drop, even on the hottest days.