Too funny, I’m not driving my truck much recently, but I never let it go past 3/4 full before I top off. It just feels so much better to top off for $40 than to fill the whole tank.
"Old Red", my '96 F150 has dual tanks. I usually keep one full and fill and switch tanks when one hits 1/2. I just topped off the rear tank today. Cost $50.
At the moment, the forward tank has developed a hole and can't be used.
(I know. Who'd have thought? Rust on a 26 year-old pickup on an island in Alaska?)
New tank on order.