Service includes: Test Drive (clutch, transmission, brakes, steering, suspension, noises) Check all fluids (level, condition) Check for leakage (oil, transmission, differential) Check battery voltage and alternator output Inspect cooling system and hose condition Inspect drive belts Inspect fuel system (filters, lines, etc.) Inspect ignition system (each spark plug, wires, cap, rotor) Compression check each cylinder Inspect brake wear Inspect tire wear Inspect shocks or struts Inspect steering assembly and power steering unit Check clutch adjustment Inspect door and window operation Visually inspect wiring harness Test electrical (fuses, horn, wipers, and washers, radio, heater-A/C, etc.) Check head lights, turn signals, brake lights, etc. Check for jack, spare tire, etc. and more