Sounds like a good idea, but it's actually easier to buy small stan bottles, fill them up, and use them to squirt the sealant through the valve. The screw system is well made, but it just doesn't work. It's slow and messy because you have sealant in the syringe when you take it out and you have to unscrew it from the valve. So yes, it sounds great, but it's actually a waste of money.
Universal Fuel Tank Lock Ring Tool For Chrysler, Dodge, Ford, GM, Nissan, And Jeep Wrangler - Easy Fuel Pump Senders Removal And Install Tool
44 Review
Lucas Oil Fuel Treatment Quart - Tan Color, 1QT Size
31 Review
Hy-Per Fuel Complete Gas System Cleaner By Rislone
24 Review
ALAVENTE Carburetor For Ford 240 250 300 YF C1YF 6 Cylinder CIL Engine 1975-1982 D5TZ9510AG, Carb For Carter YF Type, Replace # RSC-300A 6307S 6054 6055 6-736 6056 6057 6058 6059, Automatic Choke
26 Review