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.
As desperate as this sounds, in comedy, 'likes' and 'views,' 'friends,' and 'retweets' really help. If I've ever helped you, please help me by friending, liking, viewing, and retweeting. It makes others think I have a following...it'll take you a minute or less. If you could, I'd really appreciate it!
A recent set--NSFW audio: https://youtu.be/_dcxcZfD6dg
Mangofy your E46!