To use Hot Shot's Secret TBN Booster, simply add it to your engine oil according to the instructions on the package. It's easy to use and doesn't require any special tools. Make sure your engine is off and cool before adding the booster. As for maintenance, keep an eye on your oil levels regularly. This booster helps keep your oil in good condition, but you still need to check it. Also, follow your vehicle's recommended oil change schedule. If you notice any unusual noises or performance issues with your engine, stop using the product and consult a professional.