Regular preventative maintenance. Just sayin'.
State, then federal, requires us to do it every 90 days around here on the mids and heavies (above 10,000 lbs.) Critical items. Brakes, steering, lighting, leaks, air pressure, tire condition, trailer connections, etc.
I've always had a cautional eye at my rear view mirror. "When do you suppose was the last time that guy behind me checked the brake fluid level in his reservoir??"
