I keep a pretty detailed record of every fillup on our cars. Here we go

What's your summer vs winter MPG?

06 Legacy GT

-Summer Avg: 23

-Winter Avg: 20

-Total Avg: 21

03 Impreza Outback

-Summer Avg: 26.5

-Winter Avg: 23.5

-Total Avg: 24.5

09 Forester XT

-Summer Avg: 24

-Winter Avg: 19

-Total Avg: 23