Valvoline Professional Series (VPS) gives you the tools to get the most from your service chemical business. Your customer's vehicle lifespan depends on more than just an oil change. VPS offers profit generating services to maximize the life by protecting the brake system, cooling system, fuel system, power steering, transmission, engine, driveline and battery of your customer's vehicle. What's more, Valvoline backs the protection with a Limited Lifetime Guarantee with coverage of up to $4,000 for each critical system as long as your customer stays current on the services.