Give the car a FULL inspection. Look at everything that moves and replace or repair anything that's suspicious.

Change the oil

Change the plugs

Inspect or replace plug wires

Inspect your brakes and change fluid

Inspect clutch hydraulics and change fluid

Flush the cooling system and use Water Wetter and antifreeze

Replace thermostat with genuine MAZDA thermostat and inspect your filler cap

Check all hoses under the hood for dry rot or softening

Inspect or replace all accessory belts

Replace fuel filter if not new

Check all electrical connectors and clean if necessary

Inspect and test battery and battery cables and terminals

Have your A/C system inspected and checked for proper pressure

Change transmission and differential fluids. Use Redline or Royal Purple to refill.

Inspect all tires including the spare for pressure and tread depth

Check your jack and tire changing equipment

Have your alignment checked. Replace any out of spec items.

Balance your wheels

Check all of your lights for burned out bulbs

Below is a list of items to take with you on the caravan itself

2 Gallon jugs of water

Small cooler with soft drinks and water

Set of tools including: screwdrivers, pliers, electrical tape, wrenches and sockets (most common sizes: 8mm, 10mm, 12mm, 14mm, 17mm, spark plug socket)

Two extra quarts of oil

Small fire extinguisher

Spare radiator cap

Brake fluid

Road Atlas

Spare spark plugs

Jumper cables

Motorola Talkabout Radio and extra batteries

GPS unit

Radar detector

Hand cleaner and shop towels

Haynes manual for your car

Extra fuses