Love my 3.8L
JK Super Freak
Joined: Jul 2008
Posts: 1,944
Likes: 6
From: bay area, ca
"course thats what the computer says, i dont do calculations. i saw as high as 29mpg but i dont wanna sound too unbelieveable.. "
24mpg's is just as unbelievable. You're gonna have to calculate by hand if you want real data and I'm sure you're not getting more than 19 or 20...which is still better than an auto will get though.
Widewing: Yes, you're absolutely correct about the final drive ratios. However, sticks are overwhelmingly getting higher mileage than the autos. The shifting points and efficiency are probably behind that. Sticks with more gears tend to get better mileage than autos with fewer gears regardless of the vehicle because more gears means more efficiency. The first thing I noticed in my JK, after driving it for a few hundred miles, was the stupid shifting points. Shifts waaaay too late.
24mpg's is just as unbelievable. You're gonna have to calculate by hand if you want real data and I'm sure you're not getting more than 19 or 20...which is still better than an auto will get though.
Widewing: Yes, you're absolutely correct about the final drive ratios. However, sticks are overwhelmingly getting higher mileage than the autos. The shifting points and efficiency are probably behind that. Sticks with more gears tend to get better mileage than autos with fewer gears regardless of the vehicle because more gears means more efficiency. The first thing I noticed in my JK, after driving it for a few hundred miles, was the stupid shifting points. Shifts waaaay too late.
JK Freak
Joined: Mar 2010
Posts: 623
Likes: 0
From: SF Bay, CA
"course thats what the computer says, i dont do calculations. i saw as high as 29mpg but i dont wanna sound too unbelieveable.. "
24mpg's is just as unbelievable. You're gonna have to calculate by hand if you want real data and I'm sure you're not getting more than 19 or 20...which is still better than an auto will get though.
24mpg's is just as unbelievable. You're gonna have to calculate by hand if you want real data and I'm sure you're not getting more than 19 or 20...which is still better than an auto will get though.
JK Super Freak
Joined: Jul 2008
Posts: 1,944
Likes: 6
From: bay area, ca
24mpg on the freeway at 60mph is not miles per gallon average, plac. I'm talking miles per gallon overall. And besides I won't trust what the computer says. It's been established on this board that it's inaccurate.
JK Freak
Joined: Mar 2010
Posts: 623
Likes: 0
From: SF Bay, CA
average for that speed and configuration as i carefully stated. my city is much worse of course. usually 14-15mpg. computer is good enough for me, i dont care enough to start doing calculations. ill feel better this way anyway.
JK Freak
Joined: Mar 2010
Posts: 623
Likes: 0
From: SF Bay, CA
dood im stoked. i already have the thumbscrews out of my freedom tops so i can remove the lids the second i leave work. and they usually stay off for the weekend. i need them on at work, too many trees pouring pollen all day.
JK Super Freak
Joined: Jul 2008
Posts: 1,944
Likes: 6
From: bay area, ca
"average for that speed and configuration as i carefully stated."
Oops! Sorry I missed that.
When I get home I'm taking the top down and doors off. Gonna be a perfect weekend. GO SHARKS!!!!!
Oops! Sorry I missed that.
When I get home I'm taking the top down and doors off. Gonna be a perfect weekend. GO SHARKS!!!!!
JK Freak
Joined: Sep 2008
Posts: 916
Likes: 3
From: Terryville, LI, NY
"course thats what the computer says, i dont do calculations. i saw as high as 29mpg but i dont wanna sound too unbelieveable.. "
24mpg's is just as unbelievable. You're gonna have to calculate by hand if you want real data and I'm sure you're not getting more than 19 or 20...which is still better than an auto will get though.
Widewing: Yes, you're absolutely correct about the final drive ratios. However, sticks are overwhelmingly getting higher mileage than the autos. The shifting points and efficiency are probably behind that. Sticks with more gears tend to get better mileage than autos with fewer gears regardless of the vehicle because more gears means more efficiency. The first thing I noticed in my JK, after driving it for a few hundred miles, was the stupid shifting points. Shifts waaaay too late.
24mpg's is just as unbelievable. You're gonna have to calculate by hand if you want real data and I'm sure you're not getting more than 19 or 20...which is still better than an auto will get though.
Widewing: Yes, you're absolutely correct about the final drive ratios. However, sticks are overwhelmingly getting higher mileage than the autos. The shifting points and efficiency are probably behind that. Sticks with more gears tend to get better mileage than autos with fewer gears regardless of the vehicle because more gears means more efficiency. The first thing I noticed in my JK, after driving it for a few hundred miles, was the stupid shifting points. Shifts waaaay too late.
My commute is about 50-50, and I average about 19.5 MPG on 33" tires. If I were to bolt the OEM Goodyear SR-As back on, mileage would jump up about 2 MPG. Those SR-As were great for fuel mileage, but awful for just about everything else except snow.
My regards,
Widewing
JK Jedi Master
Joined: Feb 2008
Posts: 12,907
Likes: 185
From: Maine
Widewing: "Oh, and those who believe that the 6 speed will get better gas mileage than the auto; think again. In heavy stop and go traffic, the 6 speed can be short-shifted, which will improve fuel consumption a bit. However, on the highway locked up with OD on, the auto always turns less RPM than a 6 speed with the same final drive ratio. Usually more than 200 RPM less. That translates into better fuel economy than the 6 speed at normal cruising speeds."
The overwhelming consensus on this board is that the 6 speed averages far better mileage than the auto. I have an auto and I drive like a grandma and average 18.5. Those with sticks are getting up to 21mpg.
The overwhelming consensus on this board is that the 6 speed averages far better mileage than the auto. I have an auto and I drive like a grandma and average 18.5. Those with sticks are getting up to 21mpg.
"Average" and "up to" are two very different things.
With my automatic and 4.10's:
I average 18.5, and get up to 23 on the highway. The average is lower because most of my driving is in town or on the trail.
JK Super Freak
Joined: Jul 2008
Posts: 1,944
Likes: 6
From: bay area, ca
"Averaging up to," is what I implied.
Autos are averaging up to 18.5. Sticks are averaging up to 21.
Thanks for clarifying. I'm learning more and more that I'm lousy with email and message boards. I need to take a class in writing clearly.
Autos are averaging up to 18.5. Sticks are averaging up to 21.
Thanks for clarifying. I'm learning more and more that I'm lousy with email and message boards. I need to take a class in writing clearly.