Water is usually the best choice, because it's free (if you're drinking tap water) and has no sugar or calories. But most healthy people can get enough fluid through the beverages they consume every day. These can include water, fruit juices, coffee, sodas, iced tea, and other drinks.
A Cooper-produced non-speed rated passenger tire's maximum speed is 137 km/h. Tire speed ratings do not imply that vehicles can be safely driven at the maximum speed for which the tire is rated, particularly under adverse road and weather conditions, or if the vehicle has unusual characteristics.
With most on-highway truck tires now rated for 75 mph (speed rating L for the ISO LI/SSY rating), 75 should be a safe speed for tires if the correct pressure is maintained. Speeds above 75 may require additional pressure or reducing the load on the tire.