Fleet and vehicle maintenance equipment includes auto and vehicle supplies, parts, and tools for keeping vehicles on the road. Oil and air filters, wiper blades, and automotive fluids must be regularly replaced to keep vehicles in good working order. Diagnostic and inspection equipment can be used to measure the degree of coolant protection, determine battery cell condition, locate engine troubles, and more. Navigation systems monitor fleet locations and map the most fuel-efficient routes. Tire and wheel equipment keeps tires in good shape and ensures vehicle wheels are balanced. Brake cleaner, fuel additives, and other automotive chemicals are used to maximize the life of vehicle components.