Jay FX4
New Member
- Joined
- May 13, 2009
- Messages
- 3,819
- Reaction score
- 25
- Points
- 0
- Location
- Dearborn, MI - Home of the Blue Oval
- Vehicle Year
- 2004
- Make / Model
- Ford
- Engine Size
- 4.0L
- Transmission
- Automatic
The only thing I don't like about my auto trans is that the OD doesn't kick in until about 42-43 mph. There's one particular road I like that's very scenic with long stretches without any stops, and a 40 mph speed limit. So it has me wondering what would be better for fuel economy - going exactly the speed limit in 4th, or going 45 mph in 5th at about 500 rpm less? I think about this whenever I'm on a road with a 40 mph speed limit, which is quite often.
I'm able to consistently get 18-20 city mpg as it is, but for every tank of gas I like to match or exceed the mileage of the tank before it. I know it's not that big of a deal, but I figure over the course of an entire tank of gas (I can get up 350 miles on a tank) it would add up. Anyone have any thoughts on this?
I'm able to consistently get 18-20 city mpg as it is, but for every tank of gas I like to match or exceed the mileage of the tank before it. I know it's not that big of a deal, but I figure over the course of an entire tank of gas (I can get up 350 miles on a tank) it would add up. Anyone have any thoughts on this?