Grease Expire?

[benchmarks]

Once opened and sitting on my shelf will STP high temperature red lithium grease expire? I can’t remember the original red color out of the tube when opened 2 years ago, currently what’s in the tube is a dark red/maroon color. Is it supposed to be bright red or? Most importantly is it okay to use?

[Reverse_snowbird]

I don't know. Your best source would be the manufacturer's website for that particular brand.

[TitanMike]

In my personal experience grease will last a real long time and still be effective.

To me it seems to be a lot like food. If it gets too old it will either dry out (oil is separating from thickeners and seeping out of tube) or just start to stink. Some greases can start to smell real bad when they get old.

[Mandog]

No as long as it’s covered and not contaminated it will not expire….

[Oaklevel]

I have some from the 1980s .......