MPG Experiment
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Joined: Dec 2008
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MPG Experiment
I thought I would try an MPG experiment to see how good of MPG I can get out of my 2004 G Sedan AUTO. It's bone stock with 78k miles. So last 4 tanks were between 19-19.5 MPG with about 60/40 hwy/cty driving.
This last tank I filled up like normal running 91 octane (no 93 here in Kansas). I drove it 341 miles and never once on that tank took it over 2,500 rpm. Never exceeded 65 mph. In town I kept it below 2,200 rpm. It's very hard to do with the Auto and me normally being a leadfoot. Also no A/C, no windows down, tire pressures checked... So I am thinking all this 'hypermileing' should get me maybe 25-27 average.... NO.. friggin 20.2 Mpg.. without ever exceeding 2,500 RPM. I got .7 better than when I was flooring it onto the highway, racing anyone on the street, flooring it away from stoplights....GRRR i was pissed! After i calculated it like 3 times on my phone to make sure it was right i started it up, turned off the VDC, and boiled the back tires out of the gas station, slid the back end out pulling onto the main street and ran it up to about 60 in the 40 mph street. Then I felt much better about my lousy *** mileage.
This last tank I filled up like normal running 91 octane (no 93 here in Kansas). I drove it 341 miles and never once on that tank took it over 2,500 rpm. Never exceeded 65 mph. In town I kept it below 2,200 rpm. It's very hard to do with the Auto and me normally being a leadfoot. Also no A/C, no windows down, tire pressures checked... So I am thinking all this 'hypermileing' should get me maybe 25-27 average.... NO.. friggin 20.2 Mpg.. without ever exceeding 2,500 RPM. I got .7 better than when I was flooring it onto the highway, racing anyone on the street, flooring it away from stoplights....GRRR i was pissed! After i calculated it like 3 times on my phone to make sure it was right i started it up, turned off the VDC, and boiled the back tires out of the gas station, slid the back end out pulling onto the main street and ran it up to about 60 in the 40 mph street. Then I felt much better about my lousy *** mileage.
I think I got about 375 miles to the tank on 91 octane as well. I think it's just what our cars are meant to do. I don't think that's all that terrible though. I've had cars with much worse mileage. Especially considering gas prices now, a mpg here and there isn't going to kill me.
Best I've gotten is 23 MPG....and I do 90% highway driving.
What sucks is I came from an '03 Mustang GT with a V8 and used to get 26-27MPG easily on the highway using 87 octane. Now i have a V6 and barely get 23MPG and use 93 octane
What sucks is I came from an '03 Mustang GT with a V8 and used to get 26-27MPG easily on the highway using 87 octane. Now i have a V6 and barely get 23MPG and use 93 octane
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Joined: Mar 2005
Posts: 83
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From: Nashville
yes i have found the same results, gets better MPG when not babied. The engine is just more efficient when driven with normal to moderate acceleration.
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some tips that I use while driving:
- try coasting to a red light or downhill, a lot of people don't realize that the car carries a lot of momentum (it will also save your brakes as well)
- try using cruise control on those long HWY stretches whenever possible
- keep your speed between 60-70 on HWY; varying your speed between braking and mach 2 can really run up your gas comsumption
- I tend not to tail a big-rig, but it's always fun to see the difference (this can be very dangerous though, so I do NOT recommend it)
- get the junk out of your trunk: less weight means better MPG
- oil/filter change every 3k miles
- try coasting to a red light or downhill, a lot of people don't realize that the car carries a lot of momentum (it will also save your brakes as well)
- try using cruise control on those long HWY stretches whenever possible
- keep your speed between 60-70 on HWY; varying your speed between braking and mach 2 can really run up your gas comsumption
- I tend not to tail a big-rig, but it's always fun to see the difference (this can be very dangerous though, so I do NOT recommend it)
- get the junk out of your trunk: less weight means better MPG
- oil/filter change every 3k miles
Registered User
Joined: Aug 2007
Posts: 1,138
Likes: 3
From: Brampton, Ontario, Canada
I get 550-600 km when i'm driving like a granny on the highway.
BTW will removing the spare tire help? Yea, I Know it defeats the purpose of having one!
Registered User
Joined: Feb 2007
Posts: 1,067
Likes: 3
From: West Coast Canada
some tips that I use while driving:
- try coasting to a red light or downhill, a lot of people don't realize that the car carries a lot of momentum (it will also save your brakes as well)
- try using cruise control on those long HWY stretches whenever possible
- keep your speed between 60-70 on HWY; varying your speed between braking and mach 2 can really run up your gas comsumption
- I tend not to tail a big-rig, but it's always fun to see the difference (this can be very dangerous though, so I do NOT recommend it)
- get the junk out of your trunk: less weight means better MPG
- oil/filter change every 3k miles
- try coasting to a red light or downhill, a lot of people don't realize that the car carries a lot of momentum (it will also save your brakes as well)
- try using cruise control on those long HWY stretches whenever possible
- keep your speed between 60-70 on HWY; varying your speed between braking and mach 2 can really run up your gas comsumption
- I tend not to tail a big-rig, but it's always fun to see the difference (this can be very dangerous though, so I do NOT recommend it)
- get the junk out of your trunk: less weight means better MPG
- oil/filter change every 3k miles
i think the 6mt may help mileage over the slushbox because i average ~510km (90% city) and i fill up as soon as (or before) the gas light comes on.
i have easily acheived 750km+ on roadtrips which was 30+ mpg on the mountain highways of BC. many others on here have seen 30+ as well.
op - interesting experiment. i am surprised you didn't see better results. maybe try it for an extended period. remember, winter driving yields poorer mileage than summer.
I thought I would try an MPG experiment to see how good of MPG I can get out of my 2004 G Sedan AUTO. It's bone stock with 78k miles. So last 4 tanks were between 19-19.5 MPG with about 60/40 hwy/cty driving.
This last tank I filled up like normal running 91 octane (no 93 here in Kansas). I drove it 341 miles and never once on that tank took it over 2,500 rpm. Never exceeded 65 mph. In town I kept it below 2,200 rpm. It's very hard to do with the Auto and me normally being a leadfoot. Also no A/C, no windows down, tire pressures checked... So I am thinking all this 'hypermileing' should get me maybe 25-27 average.... NO.. friggin 20.2 Mpg.. without ever exceeding 2,500 RPM. I got .7 better than when I was flooring it onto the highway, racing anyone on the street, flooring it away from stoplights....GRRR i was pissed! After i calculated it like 3 times on my phone to make sure it was right i started it up, turned off the VDC, and boiled the back tires out of the gas station, slid the back end out pulling onto the main street and ran it up to about 60 in the 40 mph street. Then I felt much better about my lousy *** mileage.
This last tank I filled up like normal running 91 octane (no 93 here in Kansas). I drove it 341 miles and never once on that tank took it over 2,500 rpm. Never exceeded 65 mph. In town I kept it below 2,200 rpm. It's very hard to do with the Auto and me normally being a leadfoot. Also no A/C, no windows down, tire pressures checked... So I am thinking all this 'hypermileing' should get me maybe 25-27 average.... NO.. friggin 20.2 Mpg.. without ever exceeding 2,500 RPM. I got .7 better than when I was flooring it onto the highway, racing anyone on the street, flooring it away from stoplights....GRRR i was pissed! After i calculated it like 3 times on my phone to make sure it was right i started it up, turned off the VDC, and boiled the back tires out of the gas station, slid the back end out pulling onto the main street and ran it up to about 60 in the 40 mph street. Then I felt much better about my lousy *** mileage.
Where in Kansas do you live? In live in Shawnee (Kansas City) and get 92 and 93 octane at BP.
My 03 gets around 18-19mpg in 50/50 driving and I'm not exactly easy on the throttle. In the winter with the oxygenated "winter gas" and cold starts, my mpgs are usually in the 17-18mpg range. In the warmer months, it's around 19-20mpg. If I do 100% highway driving, I see anywhere from 25 to 29mpg depending on grade, wind, and speed. My car has gotten as high as 30mpg going from Atlanta to St. Augustine, Fl which is flat and downgradient.
You're kidding yourself if you think you're going to get 21mpg+ in city driving with a 5AT. All the mpg losses occur during stop and go driving, especially with an automatic (ie torque converter slippage, fluid pumps). The only time you'll see 20mpg+ is in either crawling/rolling major traffic (my G would see 24mpg in crawling ATL traffic) or during steady highway driving when the TC is locked.
My 03 gets around 18-19mpg in 50/50 driving and I'm not exactly easy on the throttle. In the winter with the oxygenated "winter gas" and cold starts, my mpgs are usually in the 17-18mpg range. In the warmer months, it's around 19-20mpg. If I do 100% highway driving, I see anywhere from 25 to 29mpg depending on grade, wind, and speed. My car has gotten as high as 30mpg going from Atlanta to St. Augustine, Fl which is flat and downgradient.
You're kidding yourself if you think you're going to get 21mpg+ in city driving with a 5AT. All the mpg losses occur during stop and go driving, especially with an automatic (ie torque converter slippage, fluid pumps). The only time you'll see 20mpg+ is in either crawling/rolling major traffic (my G would see 24mpg in crawling ATL traffic) or during steady highway driving when the TC is locked.
