Musick17
New Member
- Joined
- Mar 5, 2009
- Messages
- 643
- Reaction score
- 4
- Points
- 0
- Location
- Lincoln, IL
- Vehicle Year
- 2002
- Make / Model
- Ford
- Engine Size
- 2.3L
- Transmission
- Manual
I stepped up from the stock 27" tire to 31" muds from treadwright. And since they are so much bigger I cant run in 5th gear anymore, so on the highway I keep it in 4th running about 3000 rpm doing 65ish mph.
With the 27's I would run about 75-80 mph in 5th at about 3000 rpm and could net about 22 mpg usually.
I filled up and drove 40 miles in town and then ran 120 miles down to my college and filled it up again so check what the difference was in mpg. I did the math to get the proper miles traveled with the difference size and then calculated it like you would normally. Came out saying I was getting about 26-27 mpg now....
I checked my math 3 times over and it was the same each time. I was expecting the exact opposite to happen with such a big bump in tire size. I suppose using the gears more and the throttle less is what is making the difference.
With the 27's I would run about 75-80 mph in 5th at about 3000 rpm and could net about 22 mpg usually.
I filled up and drove 40 miles in town and then ran 120 miles down to my college and filled it up again so check what the difference was in mpg. I did the math to get the proper miles traveled with the difference size and then calculated it like you would normally. Came out saying I was getting about 26-27 mpg now....
I checked my math 3 times over and it was the same each time. I was expecting the exact opposite to happen with such a big bump in tire size. I suppose using the gears more and the throttle less is what is making the difference.