Originally Posted by timandsusan
Around 65 depending on weather and traffic. Tires are rated higher--that is OK. Stopping distance is major issue--If I need to stop then I want to be able to stop. Also, our average driving day is 6+ hours to go about 300 miles. No need to go faster--enjoy the scenery and music.
Timandusan's post would be the most reasonable approach. Less stress in getting going in the morning and arrivals are early in the day for the next stop. All the factors of stopping distance, tire problems and fuel consumption are within reasonable aspects. Average 50 to 60 miles in distance per hour makes for a good day.