Fuel Efficiency and the Yaris

[nookandcrannycar]

Originally Posted by ezhacker1

With DFCO and P&G extended time on all freeway i can get 48-52. depending on the terrain.

Wow. my best tank = a hare under 49 MPG from Winnemucca, NV to Mill Valley --- I-80 to Hwy 37 to 101.

[roxy1]

Originally Posted by nookandcrannycar

Wow. my best tank = a hare under 49 MPG from Winnemucca, NV to Mill Valley --- I-80 to Hwy 37 to 101.

yeah, even though my lifetime average is over 43, I have never gotten 50 on a tank (probably 49.2 or somewhere around there on a flat trip of 45-60 mph). I believe if I employed hypermiling techniques it would be very doable

[why?]

I just had a tank that was 49.9, and fuelly averaged it up to 50. It was 49.989 or something like that. New tires are wonderful for gas mileage, and no dfco at all. Just neutral coasting and some turn the engine off at red lights.

What a shock, tires make a huge difference.

[albee213]

I just drove from Seattle WA to Sacramento CA and only averaged 34.79 with a high of 40.09 getting 421.3 miles on 10.51 gallons, thought I was going to run out of fuel at that point. I was hoping I could average closer to 40mpg but it was hard to maintain lower speeds, I drove average 70 mph.

I think weight played a big part of it, my cousin was with me and he is a big guy, so am I, I weigh in at 250 and he is 270, other than that we didn't have much stuff.

[Amdkt7]

Interstate driving is not the best for Yaris gas mileage. I do much better at 45-50 mph. Cooler weather is making it harder now.

[matti]

Originally Posted by Amdkt7

Interstate driving is not the best for Yaris gas mileage. I do much better at 45-50 mph. Cooler weather is making it harder now.

Yes, I've also noticed a substantial drop in mpg due to lower temperatures (as expected). In the dead of winter, my mpg probably drops 20-25% over summer mpg. (I do believe winter blend has an effect, too.)

[Hershey]

Most likely you have the winter blend as well . It started the beginning of October here .

[yarisjoe]

I am fresh driver, have yaris for a year, at open road, not free-way, made one trip, about 300 miles, and cpu show 56 mpg, but real mpg was 50 mpg. And in past year I made 6000 miles.

[nookandcrannycar]

Originally Posted by yarisjoe

I am fresh driver, have yaris for a year, at open road, not free-way, made one trip, about 300 miles, and cpu show 56 mpg, but real mpg was 50 mpg. And in past year I made 6000 miles.

. Which model year is your Yaris?

[Amdkt7]

Since my driving has returned to near normal I am averaging 43 per tank in the summer, and 41 MPG per tank in the winter. The best roads are still the ones where I can drive 40-45 MPH and have lots of opportunities to coast. The engine is more efficient under load, doing work, not at a light cruise. Hence the pulse and glide technique. Hilly terrain creates a natural pulse and glide, provided that you either coast, or you take your foot all the way off the gas while still in gear going down steep hills. I love the ride down off the mountain coming back from Chattanooga, I can stay in gear much of the way and watch the Scan Guage read 9999, and see the average mpg soar!

[yarisjoe]

Yaris 1.0 vvti, year 2008 51 kW, 69 HP

[khmasood]

Hi guys, I have a yaris 2007 1.0L (Japanese version). I drive it here in Karachi in heavy traffic with high stop and go frequency. i am getting 26 mpg only while i am reading 40 MPGs or above in this thread.

Is my mpg fine or is there something wrong with my car.

[IllusionX]

It's about right for stop and go traffic. I get about the same with my 1.5L in city only driving.

[nookandcrannycar]

Originally Posted by IllusionX

It's about right for stop and go traffic. I get about the same with my 1.5L in city only driving.

My worst tank (all city) re my '07 = above 32 MPG, but I still agree with you. I made a trip to The Galleria (the 8th largest shopping mall in the U.S.) in Uptown Houston a day or two after Christmas. Big mistake. The specifics of the traffic jam I experienced made it impractical to turn the engine off at all. Before that trip, I was way ahead of my previous tank re fuel economy. After that trip...no way.

[nookandcrannycar]

Originally Posted by yarisjoe

Yaris 1.0 vvti, year 2008 51 kW, 69 HP

I wish that engine had been made available in the U.S. My 2001 Suzuki Swift (the car I had before my '07 Yaris) had 70 HP. With the 5-speed manual transmission, and low curb weight, that was more than enough.

[yarisjoe]

Originally Posted by nookandcrannycar

I wish that engine had been made available in the U.S. My 2001 Suzuki Swift (the car I had before my '07 Yaris) had 70 HP. With the 5-speed manual transmission, and low curb weight, that was more than enough.

Past weekend I made a trip long 375 miles and spent 30 litres or 7.9 US gallons. Computer shows 4.4 l/100km or 53,5 mpg but real is 47.8 mpg it was open road but freeway only 25 miles, average speed was about 42 mph but conditions of road do not allow faster driving, four of us was in car. and at freeway (fuel burning part of route) had additional 220 pounds of weight and max speed 87 mph ;)

[nookandcrannycar]

Originally Posted by yarisjoe

but real is 47.8 mpg

average speed was about 42 mph but conditions of road do not allow faster driving

[nookandcrannycar]

I thought the last two tanks on my 2014 dipping slightly might be because of cold weather. I checked the tire pressure at all four corners today. I now think low tire pressure () was a factor. I wish the TPMS trip threshold PSI was higher.These tires don't seem to hold pressure as well as any I've had on my 2007. I wonder if this is because the are the crappy Goodyear Assurance OEMs that many USDM 3rd Gen owners complain about...or if it is because the dealer inflated the tires with nitrogen and included free refills from the dealer (the benefits of the PAC sticker were still included even though they took the PAC sticker off the price before listing the car on cars.com)