Originally Posted by
stevef
I've never heard of any engine lubricatiion system using a fish oil additive (not saying some didn't) but Air Atlantique's two DC6s (R2800 engines) definitely had a low percentage fish oil mix in their ADI tanks rather than conventional (60/40?) water methanol.
Edited post: I can't remember if the fish oil was for lubrication or anti-corrosion purposes.
Interesting. Just goes to show most rumours have an element of truth to them.