>>The A&P instructed me to use TCP in the fuel. He also mentioned something that could be put in the oil as well.
TCP in the fuel chemically reacts with the lead to prevent it from sticking to things (valves) so that it is expelled out the exhaust. There is nothing you an put in the oil that will have a significant effect on lead fouling. My take on Av blend for small Continentals is that it does no harm other than to your wallet, but I'm not convinced you get much for your money. If you want to put Marvel Mystery Oil in your fuel, again, it probably doesn't do any harm. I would not put it in the oil any more than I would put mineral spirits (the main ingredient in MMO) in the oil. There is only one source for TCP, so if the supply is running out, we'll have to wait. Meanwhile, if you have the STC and can get mogas without alcohol, guarantied you will have no lead problems... John Cooper, A&P Skyport Services PO Box 249 4996 Delaware Tnpk Rensselaerville, NY 12147 518 797-3064 Fax 518 797-3865 www.skyportservices.net
