Fuel Economy

[marcus]

47 MPG , 5 l/100km wait is this for the d-4d engine.. isnt that just about 86 hp on it..

[swng]

I think Bredayaris has a diesel engine. Diesel engines are known for their good fuel economy. Although the d-4d engine may not have as many hp as our gas engines have, relatively speaking, it enjoys an abundance of low end torque which can compensate somewhat for its limited power.
I believe if Bredayaris tries harder, he can achieve an even better result.

[GrassrootsMS]

I drive almost 100% city driving (under 50 mph) and when driving normally (accelerating moderately hard, but not stomping it), I get about 33 mpg. When I barely touch the pedal, shift at about 2300, then I get about 44. My record on gas is 47 mpg, awesome for even a hybrid!

Also, to figure out your rpms at a certain speed (for those like me without a tach), I went to vehix.com and found the gear ratios for my manual transmission (the autobox ratios are also there I believe), and then plug them into a gear ratio/tire size/rpm speed calculator. At 40 mph in 5th, the engine is at 1800, at 60, it's at 2800, and at 80, it's at a lofty 3600. But on a trip to Canada once, crusing steadily at 82 on flat terrain, I still averaged 37 mpg!

[Bredayaris]

@ swng

My Yaris D-4d has 90 hp and 140 lb-ft instead of 106 hp and 103 lb-ft.
0-60 mph isn't that good as for the 1.5l gasoline engine, the diesel does that in 10.7 sec, but the high torque is really impressive. It pushes you in your seats.

I think i can easily get a better mileage, but remember the Netherlands is one of the most populated countries in the world, everybody is in a rush.
Our maximum speed at the highway is 75 mph, in the US slower correct me if i'm wrong.
My colleague has driven for over 30 years in the US and he says it's a really slow way of driving instead of in Europe, not even talked about the Netherlands ;)
But if i drive 62 mph i can get easily 52 mpg or better.

[swng]

Thanks Bredayaris for the additional information. Your fuel economical and yet fun to drive diesel Yaris is a very enviable car. Hope you enjoy your visits to this thread.
Safe/save and happy motoring!

[Nigal]

Just got back from a 2,000 mile trip. Two people plus about 200 lbs. of gear @ about 73 MPH and still averaged 40 MPG on the dot.

[Lafiro]

I dont get it, I have nothing in my car, keep gear changes between 1.7 and 2.7k on my automatic, and drive at max 70mph, but usually 55-60. And I dont get anything above 32MPG.

The most I ever got was 35-37mpg when I first got my car, and only maybe 1-3months later it went downhill. From there its been the same, 25-28mpg winter, and 28-32mpg summer.

I have done all services on the car, including changing spark plugs, switch to synthetic oil, and changed tranny oil.

[voodoo22]

Originally Posted by Lafiro

I dont get it, I have nothing in my car, keep gear changes between 1.7 and 2.7k on my automatic, and drive at max 70mph, but usually 55-60. And I dont get anything above 32MPG.

The most I ever got was 35-37mpg when I first got my car, and only maybe 1-3months later it went downhill. From there its been the same, 25-28mpg winter, and 28-32mpg summer.

I have done all services on the car, including changing spark plugs, switch to synthetic oil, and changed tranny oil.

I think you're revving too high. I keep my shifts under 2000rpm, but it revs at 2500 when I'm going 100 km/h and I very rarely go over 100 km/h over about 60 mph. I do mostly highway driving but even when doing plenty of city driving and am averaging 44 mpg. Try accelerating slower and not going over the speed limit and I'd bet you get over 40mpg in the summer.

[Nigal]

Originally Posted by Lafiro

I dont get it, I have nothing in my car, keep gear changes between 1.7 and 2.7k on my automatic, and drive at max 70mph, but usually 55-60. And I dont get anything above 32MPG.

The most I ever got was 35-37mpg when I first got my car, and only maybe 1-3months later it went downhill. From there its been the same, 25-28mpg winter, and 28-32mpg summer.

I have done all services on the car, including changing spark plugs, switch to synthetic oil, and changed tranny oil.

How many miles do you have on the car? My engine didn't break in until about 27K miles. When I hit that my mileage went up.

[Shroomster]

still getting 29.5 mpg city in my 2001 civic 4-door hehe

I'm trying to keep up with you all...

[swng]

Five ways to greenify your car:

http://en.autos.sympatico.msn.ca/caa...mentid=5286407

Better fuel economy will come as a by-product. Just one more reason to try harder to save earth, and gas and money of course.

[Lafiro]

I have been trying not to accel fast, and living in a packed place/close to the city, I have 99% of people who always speed. And this includes having to rev to 2000rpm minimum when allowing it to change gears because the guys behind will have a titty attack and almost hit my bumper.

As for driving the speed limit, it says 50mph, most people during the day do 60-65, and at night up to 70. So you see its hard for me just to even do 60mph at times. But even so, I tried my best and only got 32mpg. Mind you this is also after taking out two 12" sub's and changing back to stock rims/tires. I guess Im just unlucky with my car?

Also, I have now about 24,000 miles on the car.

[marcus]

Originally Posted by Lafiro

I have been trying not to accel fast, and living in a packed place/close to the city, I have 99% of people who always speed. And this includes having to rev to 2000rpm minimum when allowing it to change gears because the guys behind will have a titty attack and almost hit my bumper.

As for driving the speed limit, it says 50mph, most people during the day do 60-65, and at night up to 70. So you see its hard for me just to even do 60mph at times. But even so, I tried my best and only got 32mpg. Mind you this is also after taking out two 12" sub's and changing back to stock rims/tires. I guess Im just unlucky with my car?

Also, I have now about 24,000 miles on the car.

2 things i can think of!!

1. check tire pressure! add about maybe 5 psi over stock.
2. and air filter may be the cause as well...

[Canuck]

Lafiro,

When we quote mpg, check the location of the poster. Canadian posters may be posting imp mpg. 40 imp mpg is about 33 us mpg.

Quoting L/100km or even kml is more accurate as the litre is standard.

[voodoo22]

Originally Posted by Canuck

Lafiro,

When we quote mpg, check the location of the poster. Canadian posters may be posting imp mpg. 40 imp mpg is about 33 us mpg.

Quoting L/100km or even kml is more accurate as the litre is standard.

Good point.

I'm averaging over 44 us mpg and over 50 imp mpg.

[voodoo22]

Originally Posted by Lafiro

I have been trying not to accel fast, and living in a packed place/close to the city, I have 99% of people who always speed. And this includes having to rev to 2000rpm minimum when allowing it to change gears because the guys behind will have a titty attack and almost hit my bumper.

As for driving the speed limit, it says 50mph, most people during the day do 60-65, and at night up to 70. So you see its hard for me just to even do 60mph at times. But even so, I tried my best and only got 32mpg. Mind you this is also after taking out two 12" sub's and changing back to stock rims/tires. I guess Im just unlucky with my car?

Also, I have now about 24,000 miles on the car.

I know what you mean, it's not easy to drive in a way to get good FE when it seems like everyone around you is way too hard on the gas/brakes and constantly speeding, but I no longer care about these people. If you get into an accident or get a ticket because the guy behind you is pressuring you to go faster, they don't care and no matter how fast you go someone is going to be pissed off at you for not going fast enough!

You're still getting good FE, but you would do better if you didn't drive faster than speed limit and accelerated slower.

[Zinck]

I find the most i have gotten with my tank is 640km, and my first bar on my tank gose away after 140 km, the second one drops at about only 80 to 90km

[marcus]

Originally Posted by Zinck

I find the most i have gotten with my tank is 640km, and my first bar on my tank gose away after 140 km, the second one drops at about only 80 to 90km

the most i can get on the 1st bar is 126km. i fill up on 570 with 38.5 liters.. with 3.5- 4 liters left over..