Automotive engine oils; engine oils; non-chemical additives for engine oils; non-chemical fuel additives; automotive lubricants for car engines; lubricants; gear oils; lubricants being gear oils; lubricants containing low friction additives; lubricants for motor vehicles; lubricants having cleaning properties; motor vehicle lubricants; non-chemical additive concentrates for lubricants; greases; greases for the lubrication of exposed gears; non-chemical additives for gearbox oils; engine starting sprays; marine greases; marine oils; non-chemical motor additives; non-chemical gasoline additives; non-chemical diesel fuel additives; non-chemical power steering fuel additives; non-chemical transmission fuel additives; non-chemical biofuel additives