Concerning gas, before we lived where we do now I used to rotate my stored gas into the vehicles twice a year without problem. Now I keep 60 gallons or so set aside in 5 gallon containers but it is sequentially rotated into the lawnmower, 60 gallons being less than a year’s supply given the expanse I am mowing. I fill each container again as they empty so I always have 60 gallons. At the end of the season I add Stabil to it for the winter.
The white lithium does work well for bike chains. Rusty chains make you work a whole lot harder pedaling, so keep them greased.