RE: ASP 180 fs
well, do a search on that and see what you find out about castor before being so bombastic about that. As far as I can understand there still isn`t anything that will protect my engines better than some castor in the miks to make up for an occasional lean run, I have read all I can find on the web about castor vs synthetick and have settled on having at least some castor in my lube package.The only negative effect of castor is the thicker residue on the plane and the baked on brown on the engine.