Just got back from another 1500 mile week in my 04 Gramp Marquis: 28.5, 26.9, 27.4 mpg. Almost all highway, mostly at 70 to as low as 62 on some 55 mph rural roads, but, I did cruise some at 75 and a couple of higher-speed passes where I hit 85.
Post your current MPG
- Thread starter ToyotaNSaturn
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07 D-Max CC 4X4 with Amsoil 5w40 =average 18mpg 50/50 city/hwy
03 Impala 3.8 with Mobil 5000 5w30 = average 18mpg 90/10 city/hwy
98 s-10 blazer with ? 15w40(work vehicle) 15.5 mpg 1/99 city/hwy
daughers
04 Aveo(manual) with M1 0w03 = average 28 mpg 95/5 city/hwy
03 Impala 3.8 with Mobil 5000 5w30 = average 18mpg 90/10 city/hwy
98 s-10 blazer with ? 15w40(work vehicle) 15.5 mpg 1/99 city/hwy
daughers
04 Aveo(manual) with M1 0w03 = average 28 mpg 95/5 city/hwy
I just got back from a 140-mile round trip to the little town of Houma, LA, in the '03 Buick Park Avenue. Highway 90, smoothly paved for the most part, and nearly flat. At one point, rolling at 57 in a 55, cruise control on and windows up, A/C off, the trip computer reported 38 mpg (!). I know it always reads about 10% too high, so 34.2 is more accurate. Astonishing on a car this size.
My week-in, week-out mileage, 75% city, seems to be about 21.5, though this trip will pull the average up quite a bit.
Oil at present is Chevron Supreme dino, 5W-30, finishing up a rinse phase of Auto-Rx. Next week, I'll have PP 5W-30 put in along with a Wix filter.
My week-in, week-out mileage, 75% city, seems to be about 21.5, though this trip will pull the average up quite a bit.
Oil at present is Chevron Supreme dino, 5W-30, finishing up a rinse phase of Auto-Rx. Next week, I'll have PP 5W-30 put in along with a Wix filter.
Just refilled last night. Many short trips with a few longer trips thrown in. 35.9 mpg. Ambient temperature affects my car significantly, especially starting temperature. When temps are in the 20s or below, my car will be totally cooled off even after going into a store for 30 minutes, where as when temps get into the 50s or higher, it stays warm.
That is amazing how those larger GM and Ford cars can get such great highway mileage.
2002 Nissan Altima 2.5 4cyl. 27.0 MPG, 62 miles round trip, 42 of it highway.
Originally Posted By: montero1
'06 Triumph Sprint ST get 43 mpg same commute.
My '97 Sprint averaged more like 50. 6.6gal tank, too.
But I didn't quote just to say that. I've often wondered why motorcycles get such lousy mileage compared to cars. A gently driven Corolla can get 43 and weighs (with driver) four times as much as well as displacing much more air.
I know the basic reasons for it, having to do with aerodynamic coefficient and power/weight ratios, but even if you cruise that bike at a steady sixty you will have trouble beating a Corolla by much. Other than the obvious reasons, which don't account for anywhere near the full difference, I wonder why that is.
'06 Triumph Sprint ST get 43 mpg same commute.
My '97 Sprint averaged more like 50. 6.6gal tank, too.
But I didn't quote just to say that. I've often wondered why motorcycles get such lousy mileage compared to cars. A gently driven Corolla can get 43 and weighs (with driver) four times as much as well as displacing much more air.
I know the basic reasons for it, having to do with aerodynamic coefficient and power/weight ratios, but even if you cruise that bike at a steady sixty you will have trouble beating a Corolla by much. Other than the obvious reasons, which don't account for anywhere near the full difference, I wonder why that is.
'93 Subaru Loyale, mixed city/highway driving, 33mpg. Must be phasing out the winter gas around here, was having trouble hitting 30mpg during the winter months.
Originally Posted By: Saturn_Fan
That is amazing how those larger GM and Ford cars can get such great highway mileage.
Exactly. I just bought an 04 Grand Marquis in Feb. I had read what everyone was saying about their MPG, and frankly I was skeptical that they could do that well on the freeway.
I just got back from an 800 mile trip. I was hoping to come close to the EPA estimate of 25 on the freeway.
Got 29.1 on the trip there, 27.4 on the trip back. This is from San Diego area to Phoenix area. Some long hills and quite a lot of wind especially on the return trip. Average speed was 70-75, occasionally 80. There was only me in the car (but I'm a big guy) and about 300 lbs. of luggage and tools in the trunk.
Around town I get between 15-18. That's much better than either my van (4.0 V6) or SUV (4.2 I6) and comes very close to my wife's 05 Camry! (4 cylinder).
That is amazing how those larger GM and Ford cars can get such great highway mileage.
Exactly. I just bought an 04 Grand Marquis in Feb. I had read what everyone was saying about their MPG, and frankly I was skeptical that they could do that well on the freeway.
I just got back from an 800 mile trip. I was hoping to come close to the EPA estimate of 25 on the freeway.
Got 29.1 on the trip there, 27.4 on the trip back. This is from San Diego area to Phoenix area. Some long hills and quite a lot of wind especially on the return trip. Average speed was 70-75, occasionally 80. There was only me in the car (but I'm a big guy) and about 300 lbs. of luggage and tools in the trunk.
Around town I get between 15-18. That's much better than either my van (4.0 V6) or SUV (4.2 I6) and comes very close to my wife's 05 Camry! (4 cylinder).
I gassed up last night with 317 miles on the odometer since my last fillup. Of that 317, 140 were the all-highway Houma trip, and I had two more 30-mile round trips to the 'burbs during the same period, all at an average of 60 mph; so 59% highway, 41% city . . . and the pump clicked off at 12.64 gallons, giving me a hair over 25 mpg overall. (The car computer's average fuel economy reading for the same period was 27.6, so it's just 10% too high.)
The air filter, PCV valve, coolant, and tranny fluid are all fresh, and the tires are at 34/32.
My mileage will start dipping as I use the A/C more, but I'm impressed with what this big car can do!
The air filter, PCV valve, coolant, and tranny fluid are all fresh, and the tires are at 34/32.
My mileage will start dipping as I use the A/C more, but I'm impressed with what this big car can do!
27mpg, but car is coasting way better now that the snows are off.
That is really amazing about the Grand Marquis.
When I had a '98 Mustang GT convertible, I could never get more than 21 mpg as an average. That's with the same engine (maybe different tune) 4.6L and same transmission (4R70W). Perhaps the final gear ratio is lower (2.73:1) in the Grand Marquis. But the Mustang should have been lighter.
I'd consider a Crown Vic if I felt certain that I could get high 20's on the highway and average, maybe 24?
When I had a '98 Mustang GT convertible, I could never get more than 21 mpg as an average. That's with the same engine (maybe different tune) 4.6L and same transmission (4R70W). Perhaps the final gear ratio is lower (2.73:1) in the Grand Marquis. But the Mustang should have been lighter.
I'd consider a Crown Vic if I felt certain that I could get high 20's on the highway and average, maybe 24?
Fill up today gave me 374.9 miles/9.406 gals= 39.85 mpg. This is the highest I've ever gotten. ~270 miles averaging 70 mph with 70 miles of ac use. The rest were < 55mph. Getting passed on the highway gets annoying, especially when the person passing me is at least 50 years older than me. But seeing the mileage I got is quite rewarding.
Last 2 tanks on the little Saturn, 38.1 & 39.3MPG. Average of last 5 tanks of gas: 38.65MPG.
With the current tank, I'm trying to drive between 65-70mph rather than 70-75mph. Time will tell if there's any difference in MPG like Saturn_Fan has seen. (45MPG is FANTASTIC IMO!)
With the current tank, I'm trying to drive between 65-70mph rather than 70-75mph. Time will tell if there's any difference in MPG like Saturn_Fan has seen. (45MPG is FANTASTIC IMO!)
JHZR2
Staff member
Our new rabbit just got its first tank of gas
So we went to fill the car up. 230.7 miles, 9.424 gallons. 24.48MPG, more or less all city driving.
Oh yeah, the AC was on more or less the whole time so far...
JMH
So we went to fill the car up. 230.7 miles, 9.424 gallons. 24.48MPG, more or less all city driving.
Oh yeah, the AC was on more or less the whole time so far...
JMH
Latest 1400 mile week: 28.7, 27.7, 26.1 mpg. The first two I was averaging about 74 mph. The last one, I was over 80 mph 90% of the time. AC on the first two 100%, AC on the last tankfull about 60% of the time.
I guess it's the warmer weather...unless the Fuel Power I'm using is helping...I'm using it more consistantly than usual, because I'm using non-name-brand fuel more often as the prices hit 3.25 and more.
Any way I look at it, this old dinosauer is a great cruiser at those mpg's, considering it's size, weight, and comfort.
I guess it's the warmer weather...unless the Fuel Power I'm using is helping...I'm using it more consistantly than usual, because I'm using non-name-brand fuel more often as the prices hit 3.25 and more.
Any way I look at it, this old dinosauer is a great cruiser at those mpg's, considering it's size, weight, and comfort.
We recently got one of the Shell credit cards that gives a 5% discount. With it the price of Shell fuel is slightly lower than the cheapest indie or Costco gas.
I don't even think it's really any better. But it's certainly not worse and the consistency plus a couple pennies a gallon cost savings make it worth it.
Until now I've always bought the cheapest gas I could find, without problems. Now that I'm on Shell gas I'm tracking injector cleanliness and very curious to see whether the fuel keeps them clean longer. I don't expect and haven't noticed any other difference.
I don't even think it's really any better. But it's certainly not worse and the consistency plus a couple pennies a gallon cost savings make it worth it.
Until now I've always bought the cheapest gas I could find, without problems. Now that I'm on Shell gas I'm tracking injector cleanliness and very curious to see whether the fuel keeps them clean longer. I don't expect and haven't noticed any other difference.
My Amex card gives 3% back on gas anyplace it's used, not 5% but still nice.
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