I used to use a white grease spray after being told it was the best type of product for this application but absolutely hated the mess it made and thought it wasn't penetrating as well as an oil and not doing much in the end. For many years i've been using whatever is laying around, 3-in-one, ATF or SAE 30 at least twice a year or more on the cars i service. I do that on all hinges and latches as well as throttle likages etc. Is there a product i should favor or am i good with any of them? I was thinking about some kind of grease on latches instead of oil but my other worry is that the products i use may harm plastics long term when they come in contact, e.g. some door latch mechanism. What do you recommend? Can i stick to what i'm doing? Spending money on other products seems foolish unless you convince me otherwise. I despise spray lubricants however.
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