maximize fuel economy

5:31

2:45

12:56

4:49

24:54

7:28

5:43

6:05

6:13

6:26

8:46

27:28

4:53

10:59

00:51

11:30

11:54

10:49

9:50

4:56

3:27

6:34

7:12

5:39

3:21

1:22

4:16

8:05

00:56

4:29

3:31

4:16

00:48

13:35

8:16

13:15

6:28

33:19

00:27

3:23

6:50

23:07

3:45

5:37

3:29

12:19

1:49

1:00

6:39

4:05

12:56

4:39

10:05

6:47

1:35

5:52

3:04

3:14

3:49

3:40