I have recentley been experimenting with coolpower high performance fortified caster oil as i have been using it in model aircraft engines with good results mixed with methanol,As this product is degumed i thought i would try mixing it with unleaded fuel at 25:1, it mixes readily with petrol and runs a treat in the victa ,it shows little evidence of smoke when running fast or slow, best of all it smells great and does take your breath away like some other two stroke oils, i guess it might be something to do with being a vegetable oil, at this stage it has not fouled the plug and it still starts first pull as it has always done rgds graham