Best Conv Top Lube Product

I've used, WD-40, and household oil but it never seems to last.
Any recommendations on the best stuff to keep those hinges lubed?

 

BTW - my top motor will fry the fuse if it gets too much resisitance - that's why I'm asking.

 

WD-40 will evaporate ....

i like to get a shot syringe used for pets ...and fill it with white lithium grease ... you can really pinpoint here it goes.
it takes some practice, and buyin a few different needle sizes till you get it right ... but once you do, it works great.
store it way out of reach of kids.