f1racer328
Full Access Member
Alright so I've completed a little testing.
We'll call this the before.
Conditions:
103° F Ambient Temps
Wind 250° at 7 mph (Crosswind for both directions of travel, so it shouldn't have much of an effect)
Car at operating temps (Checked oil and coolant temps)
Front + rear climate control set to Auto 74° F
2/3 tank fuel
65 MPH (Traffic Permitted Faster Speeds)
Cruise Control on for the entire highway loop, mostly eliminating the human factor
The route was 4.3 miles each way, and I did a run in both directions. There is about a 100' elevation difference. So about 23' per mile elevation change. Flat basically.
I accelerated to 65 mph, turned on cruise control, and then reset the cars trip computer. Both runs were completed without any traffic conflicts.
Run 1
4.3 miles - 19.0 MPG
Run 2
4.3 miles - 21.3 MPG
For an average of 20.2 MPG
The MPG actually isn't bad on the highway, but I usually don't drive that slowly (That's slow here in AZ)
Throwing in the side streets I used to get to the highway I averaged about 15 mpg. Didn't take care to carefully note that though, since there are too many variables. But that's close to my average all time MPG.
We'll call this the before.
Conditions:
103° F Ambient Temps
Wind 250° at 7 mph (Crosswind for both directions of travel, so it shouldn't have much of an effect)
Car at operating temps (Checked oil and coolant temps)
Front + rear climate control set to Auto 74° F
2/3 tank fuel
65 MPH (Traffic Permitted Faster Speeds)
Cruise Control on for the entire highway loop, mostly eliminating the human factor
The route was 4.3 miles each way, and I did a run in both directions. There is about a 100' elevation difference. So about 23' per mile elevation change. Flat basically.
I accelerated to 65 mph, turned on cruise control, and then reset the cars trip computer. Both runs were completed without any traffic conflicts.
Run 1
4.3 miles - 19.0 MPG
Run 2
4.3 miles - 21.3 MPG
For an average of 20.2 MPG
The MPG actually isn't bad on the highway, but I usually don't drive that slowly (That's slow here in AZ)
Throwing in the side streets I used to get to the highway I averaged about 15 mpg. Didn't take care to carefully note that though, since there are too many variables. But that's close to my average all time MPG.
