Originally Posted By: tomcat27
I've been seasonally storing cars, jeeps, boats, etc for over 20 years. absolutely change the oil first - old oil can precipitate out the contaminents and leave sludge in the oil pan, also, if the oil happens to be acidic, it can actually etch your copper bearings. also, add stabil to the gas tank and run it a bit before storing. and disconnect the batteries: the ECM still draws power and will discharge the battery which can kill it. also, a discharged battery can freeze. best actually to remove the battery from the car.
Good points, I'd like to add, drop a quart of MMO into the gas along with the stabil just before filling it. Take the car for about a 30 minute run, then put it away and prep it. The MMO will coat the combustion chamber and keep things from flash rusting or gumming up. Taking weight off the suspension, and blocking the exhaust and intake from little varmints is a good idea as well. Last thing you need is a furry creature setting up shop in the tail pipe.