Our mechanic doesn't like WD-40, he sells Aero Kroil. He said it's much better for your blower.
Loosens Frozen Metal Parts!
An industry proven penetrating oil that has no equal. Quickly loosens
rusted nuts and bolts - frees frozen shafts, pulleys, etc. Penetrates to 1
millionth inch spaces, dissolves rust, lubricates, cleans and prevents rust.
Displaces moisture. The oil that creeps. Used by 480 of the Fortune
500 companies!