From Don Maxwell today:   Mooney has approved the synthetic brake fluid for use in all Mooney’s.. Royco 782 & Aeroshell 31.  It really needs to be used in any of the Models with the heavy duty dual puck brakes. Those models are the M20K Encore, M20M, M20R, M20S, M20TN, M20U & M20V.   Aeroshell has a new grease that has the molybdenum in it that can be used on the Dukes actuators. Aeroshell  64 .       Cold weather starting tip   Prime and wait 30 seconds. Fuel needs time to vapor