I'd use "what oil", including quotes, in any of the 3 search links on any forum page here - the google search Chad uses is what happens from the topmost Search link above ["custom google search"] - all provide enough reading for anyone
"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir "When we tug a single thing on an old truck, we find it falls off" ~ me Some TF series details & TF heater pics
