I have a Mantis tiller that specs Lithium #0 grease. It looks like wheel bearing grease but I cannot find this anywhere in a small container. Any sources?
Lubriplate 630-AAA is an excellent #0 lithium grease. AW and EP. You can get it in a 10 oz tube or a 16 oz can (better deal.)
The Lubriplate website has a list of distributors. They are usually considerably cheaper than the Lubriplate webstore, but if all else fail you can order from them direct.