[WestCoast]

use about any modern gl3 gear oils for the trans and diff, for extra protection in them add a half a can of stp, I use valvolene 20-50 for the engine, use marvel mystery oil in the fuel, 4 or 5 oz to ten gallons, helps prevent stuck valves and keeps fuel tank from rusting I don't like preston, look at the top of rad core of cars that use it, there will be a white calcium like build up on top of the cores, I use peak anti freeze, with modern motor oils you don't need any additives, when shutting down the engine for the winter wind the engine up to 1000 rpm or so while you drizzle mmo down the carb, when it starts to smoke turn engine off, mmo will have coated the valve guides and the cylinder walls