A multi-use biodegradable spray, Muc-Off's MO-94 400ml has a huge range of potential applications. It can be used on pretty much anything, including bicycles, motorcycles and cars, penetrating and expelling moisture to stop rust setting in, preventing dirt from adhering, and creating a lightly lubricating, protective film.
 
Frees seized parts
Disperses moisture to prevent rust and corrosion
Provides light lubrication for moving parts
Reduces metal to metal contact