Organized by mileage intervals with specific tasks: Oil changes (manufacturer interval), tire rotations (5,000-7,500 miles), brake inspections (20,000 miles), transmission fluid (20,000-100,000 depending on vehicle), coolant (5 years/100,000 miles), spark plugs (30,000-100,000 depending on type), timing belt if equipped (60,000-100,000 miles critical).
Each task includes why it matters, consequences of skipping, typical costs (DIY and shop), and difficulty level. Special sections for high-mileage vehicles (100,000+) and severe service conditions (towing, extreme temperatures, short trips).
Print it, keep it in your glove box, and check off items as completed. This simple discipline prevents expensive breakdowns and keeps vehicles running long after loans are paid off.