anyone tried this 4LIFETIME brand of silicone grease?

No, but I use the following two a lot on vehicles, and the first one even for printer repair, old monitor stands, etc.:

1707573057008.webp


This one is O-Ring lube - I use it on injector O-Rings and pretty everywhere else where I don't want to use motor oil or regular grease to lube O-Rings:

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Looks like some generic relabeler. First Amazon reviewer I saw indicates that while the description says US made, the tube says it may come from China, Taiwan, Vietnam, etc. For as cheap as US made silicone is, with a better quality pedigree, the lack of COO is enough for me. It’s not like you’re buying shin etsu which is great stuff.
 
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