Um...PB Blaster is a penetrating, rust dissolving solvent, and I don't think it's intended as a lubricant...though I do think the same company makes a lubricant...be careful what you get. I'd go to an auto parts shop and tell them what you want to lubricate. That said, I just cleaned mine really well...using 1.5 cans of cleaner, and it's been fine now for maybe 3 years. Sounds like it's beginning to want another cleaning, so I'll get to that one of these warmer days...and then use lubricant too.
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