That would be bad, i would want to eat my model...no, i will stick with my synth/castor mix. Some of the guys who had motorbikes and used castrol R or similar go weak at the knees when i give them a little blast of 2% castor, its a bit weird when they are all standing behind my model sniffing it....anyway, it is a great smell, and, castor is good for the gut! lol
Just dont use 20% or you engine will become black, 2% is more than enough
