Yaris fuel milage, finaly!

[D.A.L]

Hey all. I got the car Feb 1/06. 2006 Yaris 5 door LE, auto. $21,000 all up - out the door, full tank. I have excluded the dealer fillup. I live in Toronto and 80 -90% of the driving was highway with a few trafic jams here and there.
Tank 1) 521km @ 38l = 7.29l/100 = u.s 32.27 or 38.75 imp mpg 2)560km @ 39.2l = 7.0l/100 = us33.6 or 40.35 imp mpg 3) 528 @ 38.8l = 7.34l/100 = us 32.05 or 38.49 imp mpg 4) 590 @ 39.3l =6.66l/100 = us35.21 or 38.75 imp mpg 5) 598km @ 39.47l = 6.68 l/100 = us 35.21 or 42.29 imp mpg 6) 594 km @ 39.5 = 7.29l/100 = us 32.27 or 38.75 ipm mpg 7) 642km @ 40.66l = 6.33l/100 = us 37.16 or 44.63 imp mpg 8) 773km @ 48.08l = 6.21l/100 = us 37.88 or 45.49 imp mpg 9) 330km @ 21.67l = 6.56l/100 = us 35.86 or 43.06 ipm mpg.
The car has about 6000km on it now. I drove very conservatively. Feb-march temperatures were around -4 deg Celsius.
Tire pressure was at 40 lbs. I got about 70-80km/bar average. I drove it to the flashing bar. I have never filled up past the 40l mark yet. For my long trips I would fill maybe 10l then add it to my total at the next fill up. COMMENTS ON THE CAR: Good points - considered a green car re: emissions, lots of interior room, decent sound system, great hp even when passing on the highway, decent mileage, fairly quiet on the highway, good fit and finish, nice control layout. Bad points: buffeting makes rear windows basically useless above 70kpm, 1st gear is way to low especially in city traffic re; it changes from 1st to 2nd then back down way to many times, OD gear on highway is way to low re: at 100kph your driving at 3000 rpm which creates way to much engine breaking when you let off the gas - even when going down hill which means you can't let off the gas going down a big hill without slowing down,
Harmonic engine vibration at 100kph (I’m going to get that checked), the black material used for the dash and door panels marks or scuffs way to easy and is hard to wipe down with anything but a damp cloth, needs cruise control, wipper motors, front and rear, are way to noisy, headlights should come ON AND OFF with the engine (it is 2006!). My expectations for this car are 1) great gas mileage as advertised, very low emissions as advertised, longevity because it's a Toyota. If you want to do your own mpg or l/100k conversions just google - fuel conversions or miles per gallon conversion- and you should hit a few sites with automatic conversion tables. For l/100k just divide you total km's by 100 then divide your total lters used by that number. ie. 592 km @ 38.5 lters = 38.5/5.92 = 6.5 l/100km. Thanks, bye for now, Don

[Island Boy]

Originally Posted by D.A.L

Hey all. I got the car Feb 1/06. 2006 Yaris 5 door LE, auto. $21,000 all up - out the door, full tank. I have excluded the dealer fillup. I live in Toronto and 80 -90% of the driving was highway with a few trafic jams here and there.
Tank 1) 521km @ 38l = 7.29l/100 = u.s 32.27 or 38.75 imp mpg 2)560km @ 39.2l = 7.0l/100 = us33.6 or 40.35 imp mpg 3) 528 @ 38.8l = 7.34l/100 = us 32.05 or 38.49 imp mpg 4) 590 @ 39.3l =6.66l/100 = us35.21 or 38.75 imp mpg 5) 598km @ 39.47l = 6.68 l/100 = us 35.21 or 42.29 imp mpg 6) 594 km @ 39.5 = 7.29l/100 = us 32.27 or 38.75 ipm mpg 7) 642km @ 40.66l = 6.33l/100 = us 37.16 or 44.63 imp mpg 8) 773km @ 48.08l = 6.21l/100 = us 37.88 or 45.49 imp mpg 9) 330km @ 21.67l = 6.56l/100 = us 35.86 or 43.06 ipm mpg.
The car has about 6000km on it now. I drove very conservatively. Feb-march temperatures were around -4 deg Celsius.
Tire pressure was at 40 lbs. I got about 70-80km/bar average. I drove it to the flashing bar. I have never filled up past the 40l mark yet. For my long trips I would fill maybe 10l then add it to my total at the next fill up. COMMENTS ON THE CAR: Good points - considered a green car re: emissions, lots of interior room, decent sound system, great hp even when passing on the highway, decent mileage, fairly quiet on the highway, good fit and finish, nice control layout. Bad points: buffeting makes rear windows basically useless above 70kpm, 1st gear is way to low especially in city traffic re; it changes from 1st to 2nd then back down way to many times, OD gear on highway is way to low re: at 100kph your driving at 3000 rpm which creates way to much engine breaking when you let off the gas - even when going down hill which means you can't let off the gas going down a big hill without slowing down,
Harmonic engine vibration at 100kph (I’m going to get that checked), the black material used for the dash and door panels marks or scuffs way to easy and is hard to wipe down with anything but a damp cloth, needs cruise control, wipper motors, front and rear, are way to noisy, headlights should come ON AND OFF with the engine (it is 2006!). My expectations for this car are 1) great gas mileage as advertised, very low emissions as advertised, longevity because it's a Toyota. If you want to do your own mpg or l/100k conversions just google - fuel conversions or miles per gallon conversion- and you should hit a few sites with automatic conversion tables. For l/100k just divide you total km's by 100 then divide your total lters used by that number. ie. 592 km @ 38.5 lters = 38.5/5.92 = 6.5 l/100km. Thanks, bye for now, Don

I have to ask, WHY are you running 40 lbs tire pressure when Toyota calls for only 30lbs?

[el53]

to get less rolling resistance

[karugs]

What highway speeds were you driving? I am led to believe that the EPA highway ratings are for 60mph highway runs. Are front and rear tires both 40psi? I think recommended pressures are usually 30F/28R or something similar. Try lowering the rear to 38.

[D.A.L]

My speed was 100kph +/-. I'm now going to drive 110 kph +/- the next few tanks to see how it may affect fuel economy. A higher tire pressure will give you better rolling resistance. Try pushing a loaded wheel barrel with a tire that is at max pressure then let a bunch of air out and feel the extra effort required to push it. Solid alloy wheels would give you the least resistance, but the ride would be unbearable!
Don

[Lasse D]

You should not increase tire pressure. It reduces both the performance of the car and lifetime of the tires.

[Tideland Prius]

Yeah but Toyota's known to give recommended pressures that are slightly "underinflated" to give itself some room for error (so that tyres don't blow up à la Ford Explorer).

My Camry's recommended pressure is 28psi for the 16" tyres. That seems too low. When we used it for the first 10,000kms of its life, we noticed the tyre kept bulging (i.e. the sidewall is giving way). After that, I pumped it up to 30 all around and that seemed to have solved that problem. I might pumped it up to 32psi once in a while but it's usually at 30psi. Life isn't shortened. We changed it at around 75,000kms (~3½ years)

My Prius recommended is 35/33. I'm using 37/35 but the ride's noticeably stiffer.

[stuts]

Island boy I know this sounds like I am a know it all but I have to do it I just checked my cars sticker tag about the tire pressure its actually 32 lbs Lasse D your right about the tire pressure it is harder on your shocks if you have it up as high as D.A.L had and your car in general also by raising the tire pressure to almost max which is 44 lbs it is not safe specially in the winter also your tire pressure will fluctuate so much specially if it’s a hot day the tire will expand so having it up to 40lbs is not the best thing I personally have mine set at 36lbs which I think is a nice in between

[stuts]

D.A.L I thought you were only going to do five/six tanks you did nine I can understand why it took so long I personally think it would have been better to start recording the fuel mileage now rather than in February we all know that a new car takes awhile to get worked in and on top of that it is the winter with special winter gas but thank you very much for doing this it is a good reference for myself to compare I find it very interesting to see the varying tanks you got my favorite was 773 I am loving every minute of that one let me tell ya also thank you for making it easy to understand I hope you can do another one this summer or just keep us updated on your best tanks