from the Island, I'll attest there's not a lot to be done, but keeping it under cover and especially out of any sun that happens to show will help ...and of course there's always the best solution: drive it daily
"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
