I have purchased that radiator guard as well. Thank you very much for the info.
FWIW: If you want a lubricant for rubber bushings like that, but you don’t want it to remain slippery from silicon spray, I actually use my spit believe it or not.
Works fantastic for mating tight items together and when it dries in a couple minutes, it is fixed in place with no slippery silicone residue.
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