24.8" Steel Bendable Universal Spout Funnel with Filter for All Automotive Oils, Flexible Long Funnel for Transmission Fluid, Diesel Fuel and Other Liquids with Gloves

If you have one with the larger dipstick tube (3/4 inch diameter or so) like on the 6 speed automatics, use this funnel: https://a.co/d/036xxf2B They sometimes change the diameter at the end so you might have to try similar ones, mine is actually Qwork brand but the 24 inch long Qwork is not available. It fits nicely into the 3/4 inch dipstick tube on my 6 speed AT and puts the funnel up high for easy pouring, They also have 15 inch versions but I find its an inch too short to stay in the dipstick securely. Make sure the funnel is screwed on securely, pour slowly and it works great to fill via the dipstick.