At Opti-Lube, we're dedicated to helping you improve your engine's fuel tank with our superior fuel additives and cleaners. However, you might need something to help you funnel these high-quality products into your fuel tank. That's where our fuel additive funnel comes into play. This funnel is specifically designed to work with Opti-Lube bottles and is suitable for 4-, 8-, and 16-ounce bottles along with quart and gallon jugs. Simply screw it onto the cap, and you're all set! This funnel has a long, ergonomic spout that is ideal for pouring additive or cleaner into your fuel tank. It is even long enough to push past the second fuel door, so you'll have complete access to your fuel tank. This funnel also has a water-tight cap, so you don't have to worry about anything leaking or spilling while it's in storage. Our funnel makes your job easier. It'll prevent leaks and spills while pouring your additive into your tank, so you won't have any big messes to clean up. This funnel measures at 5.5”, making it the perfect size for storage. Just stow it away on the shelf of your shop or garage. This funnel comes in a bright green color, so it's hard to miss! It's that simple! Our funnel is made from heavy-duty, high-quality plastic, ensuring that you'll be able to use it for years to come. Although it's made from plastic, it's extremely flexible. You can insert it at different angles, allowing you to get the most from your fuel additive. Make your life easier by adding this fuel additive funnel to your car and truck supplies today.