Fuel Economy

[swng]

Latest tank returned about 41.78 mpg (Imperial) or 34.77 mpg (US) or 6.77 liters/100 km or 14.78 km/liter.
City/highway = 30/70. A/C was on about 20% of the time. Load was two people plus some belongings most of the time. Driving style: Synchronize with normal traffic.
Weather has been gradually warming up, and it must have helped a bit.
Last update is at Post #1145, Page 77.
Historical:http://www.gassavers.org/garage/viewgaslog/264

[swng]

Originally Posted by swng

Latest tank returned about 41.78 mpg (Imperial) or 34.77 mpg (US) or 6.77 liters/100 km or 14.78 km/liter.
City/highway = 30/70. A/C was on about 20% of the time. Load was two people plus some belongings most of the time. Driving style: Synchronize with normal traffic.
Weather has been gradually warming up, and it must have helped a bit.
Last update is at Post #1145, Page 77.
Historical:http://www.gassavers.org/garage/viewgaslog/264

Filled up on 2 Jun 07 and the result was:

About 563 km traveled. Consumed 38.096 liters of fuel and used C$42.82 to fill back up.
Approximately 41.76 mpg (Imperial), or about 34.76 mpg (US), or 14.78 km per liter, or 6.77 liters per 100 km. I occasionally carried three passengers with their belongings, and the A/C was used about half of the time. Weather was good but warm. Driving style was - keep pace with traffic and be fuel economy conscious. No exotic measure used to save extra fuel. Other conditions similar to last report quoted i.e. Post #1201 at P.81.

This time, I used this free calculator (except for mpg (US)) which also contains a pageful of usual fuel saving tips:

http://www.vehicleservice.co.za/calc/fuel.html

For the mpg number in US gallon terms, I used the calculator provided free here:

http://www.gassavers.org/garage/viewgaslog/264

[naossoan]

ok I did a calculation last night when I got home.

I drove 565 Km on 34.something litres of gas. 87 octane
came out to 6.11 L / 100km or 39.something MPG.

Not bad!

Also, how many litres is the gas tank? 40? Seems right because the last time I filled up, the last fuel bar just started flashing and I put 36.5 litres in so 40 seems about right. I'm at work and don't have the user manual with me to check. can anyone confirm this?

[palsan]

Originally Posted by naossoan

Also, how many litres is the gas tank?

42L, 11.1gal (US), 9.2gal (imp.)

[swng]

Originally Posted by swng

Filled up on 2 Jun 07 and the result was:

About 563 km traveled. Consumed 38.096 liters of fuel and used C$42.82 to fill back up.
Approximately 41.76 mpg (Imperial), or about 34.76 mpg (US), or 14.78 km per liter, or 6.77 liters per 100 km. I occasionally carried three passengers with their belongings, and the A/C was used about half of the time. Weather was good but warm. Driving style was - keep pace with traffic and be fuel economy conscious. No exotic measure used to save extra fuel. Other conditions similar to last report quoted i.e. Post #1201 at P.81.

This time, I used this free calculator (except for mpg (US)) which also contains a pageful of usual fuel saving tips:

http://www.vehicleservice.co.za/calc/fuel.html

For the mpg number in US gallon terms, I used the calculator provided free here:

http://www.gassavers.org/garage/viewgaslog/264

Latest tank's result:
About 38 mpg (Imp), or 31.69 mpg (US) or 13.47 km per liter.
The car was driven by my brother most of the time. I am not surprised by the drop in mpg considering the people and golf clubs he carries.
I am glad that the result is still above the EPA average.
Last report at Post #1246.

[keesue]

I'm now getting 40 mpg consistently at 70 mph max speed - up from 36.5. I have 9,100 miles on the car and its an Automatic. It is used predominately as a commute vehicle with 65 mph average speeds on the freeway - some hills with a bit of city on both ends. The car is all stock - no changes. I'm considering running Royal Purple 5w-20w. Also considering a CAI to open up the throat. In every car I have owned, these two things were the single most noticable improvement in fuel efficiency - as long as the right foot didn't cancel it out. (A free-flowing exhaust also helped but I don't want the noise in this one).

I have read the threads posted herein on the subject of fuel gains with a CAI and there appears to be no agreement. I'm wondering if there is a cancelation affect as the ECU adjusts the fuel and air ratio thereby making the gain in hp/torque that does not necesarily translate into better mpg. I would think that efficiency gain would result in mpg gains. I'm not sure about this as my past cars were not controlled by computer. I think I need to delve into this a bit more. I would expect a modest increase but would need to know a number to justify the ROI. Having said that, its time to lower the car. This, of course, would be sans ROI - just looks...heh.