Filtering Out The Nonsense Since 1932 | FRAM Backed by an enduring spirit of innovation, we make the highest-quality air, fuel, and oil filters for consumers and industries. Find the one you need today. Fuel Line Disconnect Tool - AutoZone The best fuel line disconnect tool for cars and trucks allows you to quickly and easily disconnect the fuel line. Fuel lines have more pressure in the lines creating a secure connection. Using a fuel line disconnect tool helps you disconnect the fuel line from the connector without causing damage.