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Old 10-26-2012, 02:36 PM   #2251
53x12
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Went on a trip for work this week. Average 37.8 MPG on the trip computer. Came out to 37.0 mpg when calculated by hand.

Temp: Low 80s
Speed: 70mph
Tire pressure: 35 psi
Terrain: Mostly flat with some slight hills
Car: '12 Sport Premium 5MT




Picture taken 72 miles after fill up, so this is not after just 3 miles of driving down hill. Also have a video clip of it.
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Old 10-26-2012, 03:52 PM   #2252
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Working with metric here (although I'll include non-metric figures in parentheses, for those of you south of the 49th).

My car is still in its breaking-in period, I would say 95+% of my driving is in craptastic city driving - ie. never-ending traffic jam. I got the car just over 2 weeks ago, commuting about 50-60km per work day and getting a bit of personal driving in on the weekends. Piss poor weather lately has prevented me from doing much night driving.

Distance travelled to date is about 804km (approx 500 miles), already had two fuel-ups.

First: 41.998 litres (just over 11 US gallons) for 407.2km distance travelled (approx 253 miles), 10.314 l/100km (22.81 MPG); meter reading was 10.8 l/100km (21.78 MPG)

Second: 41.605 litres (just over 11 US gallons) for 396.8km distance travelled (approx 247 miles), 10.485 l/100km (22.43 MPG); meter reading was 9.6 l/100km (24.5 MPG)

Average over two fuel-ups: 83.603 litres (just over 22 US gallons) for 804.0 km travelled (500 miles), 10.398 l/100km (22.62 MPG).

Summary: fuel consumption seems a little high based on initial calculations, but I'm hoping this is just a break-in period thing. Of course, a lot of that also has to do with the crummy traffic situation where I'm at.

Interesting that the first fuel-up resulted in a pessimistic meter reading, while the 2nd fuel-up showed over-optimistic (ie. under-estimated) fuel consumption on the meter.
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Old 10-26-2012, 04:01 PM   #2253
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Yea that doesnt surprise me. Stop and go traffic eats up gas in these cars. After break in will probably get a little better but id say not more then 1-3 mpg. At least you have one of the safest cars on the road? lol consolation prize?
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Old 10-26-2012, 04:09 PM   #2254
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True - and some days, I wonder if the traffic is more stop than go.

Considering the circumstances that led me to this car, I'm much relieved to know that it's one of the safest cars on the road.
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Old 10-26-2012, 04:18 PM   #2255
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Quote:
Originally Posted by myrt1987 View Post
Yea that doesnt surprise me. Stop and go traffic eats up gas in these cars. After break in will probably get a little better but id say not more then 1-3 mpg. At least you have one of the safest cars on the road? lol consolation prize?
My hunch is the mileage will get worse over the winter due to the colder temp and possible winter fuel blends.

Next year maybe a 1-3mpg improvement, if the driver is lucky.

But when you get out of the city at some point your mileage will climb quite a lot, which is a big encouragement to take weekend trips!
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Old 10-26-2012, 04:18 PM   #2256
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Quote:
Originally Posted by lymphomaniac View Post
Working with metric here (although I'll include non-metric figures in parentheses, for those of you south of the 49th).

My car is still in its breaking-in period, I would say 95+% of my driving is in craptastic city driving - ie. never-ending traffic jam. I got the car just over 2 weeks ago, commuting about 50-60km per work day and getting a bit of personal driving in on the weekends. Piss poor weather lately has prevented me from doing much night driving.

Distance travelled to date is about 804km (approx 500 miles), already had two fuel-ups.

First: 41.998 litres (just over 11 US gallons) for 407.2km distance travelled (approx 253 miles), 10.314 l/100km (22.81 MPG); meter reading was 10.8 l/100km (21.78 MPG)

Second: 41.605 litres (just over 11 US gallons) for 396.8km distance travelled (approx 247 miles), 10.485 l/100km (22.43 MPG); meter reading was 9.6 l/100km (24.5 MPG)

Average over two fuel-ups: 83.603 litres (just over 22 US gallons) for 804.0 km travelled (500 miles), 10.398 l/100km (22.62 MPG).

Summary: fuel consumption seems a little high based on initial calculations, but I'm hoping this is just a break-in period thing. Of course, a lot of that also has to do with the crummy traffic situation where I'm at.

Interesting that the first fuel-up resulted in a pessimistic meter reading, while the 2nd fuel-up showed over-optimistic (ie. under-estimated) fuel consumption on the meter.

What type of fuel do you put in the car. Here in the States, for mostly city driving (75-80%) we are still managing ~26-27mpg depending on the tank. I think you will see things improve after your engine is broken in. We sure did.
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Old 10-26-2012, 04:47 PM   #2257
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Quote:
Originally Posted by 53x12 View Post
What type of fuel do you put in the car. Here in the States, for mostly city driving (75-80%) we are still managing ~26-27mpg depending on the tank. I think you will see things improve after your engine is broken in. We sure did.
Chevron 87 octane. I don't doubt that some of the "consumption" is due to the evaporation and lower energy content of the ethanol component of the fuel (we get up to 10% mixed into our fuel here - legislated by our provincial government since 2010). I certainly noticed crappier fuel consumption calculations on my '01 Integra for the few years before it crashed, compared to similar driving habits and distances for the few years prior to that.

I'm pretty sure though that my current fuel consumption is primarily due to poor traffic conditions (and secondarily due to it still being broken-in as well as potential effects due to ethanol). Totally looking forward to taking it on some longer trips once the break-in period is over.
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Old 10-27-2012, 01:07 PM   #2258
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Quote:
Originally Posted by ST Eye View Post
I bet you can't get 50 MPG @ 55 MPH.
You're probably right - I finally got a chance to do a two way run at the same spot, and only got 43 mpg at 55 mph. It was a lot colder though - in the 30's this morning, and of course cold air intake uses more fuel. I doubt if it uses 15% more though...
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Old 10-28-2012, 10:06 AM   #2259
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Part of the issue that people are experiencing with the mpg is due to the "weak engine" and the gearing. Currently it has tall gearing so you are constantly flooring it to get up to speed or merge. If they had added a 6th speed to the manual, the gears would have been shorter resulting in slightly better performance and not as much need to floor it.
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Old 10-28-2012, 10:51 AM   #2260
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Quote:
Originally Posted by 53x12 View Post
Part of the issue that people are experiencing with the mpg is due to the "weak engine" and the gearing. Currently it has tall gearing so you are constantly flooring it to get up to speed or merge. If they had added a 6th speed to the manual, the gears would have been shorter resulting in slightly better performance and not as much need to floor it.
I disagree with this statement, and believe that people feel this way because they don't know how to most effectively choose a gear (at least when it comes to the manual tranny).

Third gear in our manual trannies is good up to 80 mph. People cruising on the highway downshift from 5th to 4th (which is also an overdrive gear), and then are disappointed with the car's performance. Instead, downshift from 5th directly to 3rd and go. You don't have to "floor it" while you're in 3rd, but you will be much more satisfied with the car's response to the gas pedal, regardless of whether you floor it or not.

Giving the car a 6th gear would only require more unnecessary shifting. 3rd gear is a flexible gear, and with the boxer engine's flat power band, will meet your needs from 40 mph all the way up to beyond the legal speed limit in every state.
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Old 10-28-2012, 11:55 AM   #2261
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Filled up last night. I got 24.5 MPG actual. The Car was reading 27.0 MPG. This is the 3rd straight tank that it was 2.5 mpg off. After fill up i drove 60 miles back home and averaged 37.8 MPG on the screen. I was driving between 60-70 mph. This car is great for long highway trips....Comfortable seats....smooth engine...nice cabin..and nice MPG on the highway. City driving is a different story...especially with the manual.
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Old 10-28-2012, 12:04 PM   #2262
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just hit 1000 miles. last tank was about 1.5 mpg below the computer. I'm averaging about 29 right now.
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Old 10-28-2012, 12:57 PM   #2263
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Quote:
Originally Posted by n00b on demand
Filled up last night. I got 24.5 MPG actual. The Car was reading 27.0 MPG. This is the 3rd straight tank that it was 2.5 mpg off. After fill up i drove 60 miles back home and averaged 37.8 MPG on the screen. I was driving between 60-70 mph. This car is great for long highway trips....Comfortable seats....smooth engine...nice cabin..and nice MPG on the highway. City driving is a different story...especially with the manual.
Did you account for odometer error?
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Old 10-28-2012, 05:43 PM   #2264
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Quote:
Originally Posted by sgoldste01 View Post
I disagree with this statement, and believe that people feel this way because they don't know how to most effectively choose a gear (at least when it comes to the manual tranny).

Third gear in our manual trannies is good up to 80 mph. People cruising on the highway downshift from 5th to 4th (which is also an overdrive gear), and then are disappointed with the car's performance. Instead, downshift from 5th directly to 3rd and go. You don't have to "floor it" while you're in 3rd, but you will be much more satisfied with the car's response to the gas pedal, regardless of whether you floor it or not.

Giving the car a 6th gear would only require more unnecessary shifting. 3rd gear is a flexible gear, and with the boxer engine's flat power band, will meet your needs from 40 mph all the way up to beyond the legal speed limit in every state.
I disagree. Car should have had shorter gearing and a 6th gear. 1st and 2nd are too long of gears for my taste.
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Old 10-28-2012, 05:58 PM   #2265
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Originally Posted by 53x12 View Post
I disagree. Car should have had shorter gearing and a 6th gear. 1st and 2nd are too long of gears for my taste.
while i agree, it is definitely drivable if you are willing to use 2nd/3rd gear for all acceleration and are not afraid to exceed 4k rpm
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Old 10-28-2012, 08:18 PM   #2266
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while i agree, it is definitely drivable if you are willing to use 2nd/3rd gear for all acceleration and are not afraid to exceed 4k rpm

Exactly.
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Old 10-28-2012, 08:30 PM   #2267
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Originally Posted by flyboy1100 View Post
while i agree, it is definitely drivable if you are willing to use 2nd/3rd gear for all acceleration and are not afraid to exceed 4k rpm
...which you shouldn't be afraid to do, since redline is at 6500 rpm.
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Old 10-28-2012, 08:38 PM   #2268
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4k is where the engine finally starts to pull [get fun], as much as 148hp can pull. As such, I find my self regularly north of 4k when accelerating.
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Old 10-28-2012, 08:45 PM   #2269
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I'm not "regularly" north of 4k, but if I need power, I'll drop into 3rd gear (or even 2nd if my speed is low enough) and spool her up.
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Old 10-28-2012, 08:48 PM   #2270
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Business trip this past week from Fairfax VA to Boston. I had two other passengers and three sets of luggage for spending the week in Boston.

Filled the tank at Fenway and drove 484 miles back home without stopping for fuel. Drove between 65 and 80 on the interstate and sat in minor traffic in both Boston and NYC.

IMO that's impressive for an awd car
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Old 10-28-2012, 09:03 PM   #2271
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...which you shouldn't be afraid to do, since redline is at 6500 rpm.
Of course not, but then you have people wondering why they are averaging 25mpg for a tank. If you want good fuel economy, you need the engine to be warm and not take short trips all the time nor sit in traffic. You also want to accelerate slowly and keep a reasonable speed on the highway. Reving 4-5k to accelerate, pass cars, drive over a mountain pass is what will kill the fuel economy.

For best fuel economy I try to keep and revs below 2500 as much as possible. That is for MPGs. If I want to have fun, then I let the engine sing. But if I am opening up the engine, I am not expecting to get back the same fuel economy when I drive more conservatively. There is a trade off.

If you want this car to accelerate at a decent clip to merge onto a highway, you gotta floor it as the gearing isn't the best setup imo.



Quote:
Originally Posted by Cogito8888 View Post
Business trip this past week from Fairfax VA to Boston. I had two other passengers and three sets of luggage for spending the week in Boston.

Filled the tank at Fenway and drove 484 miles back home without stopping for fuel. Drove between 65 and 80 on the interstate and sat in minor traffic in both Boston and NYC.

IMO that's impressive for an awd car
I agree that is very impressive for an AWD car. On one of my trips I managed 521 miles from a tank.
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Old 10-29-2012, 08:56 AM   #2272
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How do you attach a coolant heater to the engine in this car? And is it worth it for Minnesota?
(yeah i'm a hypocrite, you're cool, **** you too)
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Old 10-29-2012, 09:42 AM   #2273
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I dunno about the accelerate slowly bit. My take on it is get to whatever your cruising speed is going to be and back off. It seems to me that getting 12mpg for 5-10 seconds is better than getting 18 for 20. You also get the bump in mpg up to 30+ when you back off to cruise.

Did that make sense?
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Old 10-29-2012, 09:48 AM   #2274
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No, if you want better MPG's you need to accelerate and decelerate slowly (try to plan ahead and coast in gear to stops instead of driving up the the red light and hitting the brakes) -- this is not rocket science.
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Old 10-29-2012, 10:06 AM   #2275
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Quote:
Originally Posted by goregasm
How do you attach a coolant heater to the engine in this car? And is it worth it for Minnesota?
(yeah i'm a hypocrite, you're cool, **** you too)
Lol 45
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