I know they say the top speed is like 103 mi/h or so, and the car has briefly been up to 97 mi/h with 2 people in it and the AC on, but what's a good maximum speed to sustain for a long period of time?
Can I just floor it and not worry about it if I keep an eye on the temperature gauge?
What kind of fuel efficiency should I expect at higher speeds?
The car is an 84 300SD with 118,000 miles on the odometer.
Santa Barbara, CA