happens to us all, just hafta live with it - you listed the exact reasons it happens, just filled tank warms up with truck leaning to the filler side, so you know what to avoid, no way to prevent liquid expanding with temp

Bill

Moved over to the Passing Lane

"When we tug a single thing in nature we find it attached to the rest of the world" John Muir
"When we tug a single thing on an old truck, we find it falls off" me
Some TF series details & TF heater pics & Rust-a-holics Unanimous parking lot