waste oil.

[Chip Sylverne]

Works great on manure spreader apron chains, baler chains and sundry other farm equipment. Nice and sticky...

 

[Graueradler]

Airport has a waste oil tank. A recycling outfit comes around periodically and empties it.

 

[MauleSkinner]

I just filed the piston rings down a little bit so I never have to change it...I just add.

 

[CMongoose]

It goes into the Aston Martin, where else? It's much easier to pour in than the nails or the smoke!