Years ago, Fred Thomas had me buy Water Wetter for the TR3 cooling system and "........" to add to the battery for longer life. I can't seem to remember the name of the battery additive. Any old timers out there remember what additive Fred recommended? TIA Tom Fansher Central FloridaVTR 1960 TR3A 1961 TR3A 1962 TR4 1973 Stag Mk II Sent from my iPad