What is the most economic speed for Yaris? - Toyota Yaris Forums

hans_fh · 02-15-2007, 02:48 PM

I am just wondering what how fast I should drive on highway to get the best fuel consumption.

THX!

hystria · 02-15-2007, 03:25 PM

55mph

foober · 02-15-2007, 03:35 PM

from what I've seen from my yaris. Its the acceleration that eats up the gas. ONce your at a certain cruising speed the gas milage is about the same unless you go very fast. Even then. ON the highway going at a steady 75 I get over 40 miles to the gallon.

60 Somethings · 02-15-2007, 04:27 PM

foober puts it pretty well - my ScanGauge confirms that acelleration lowers your gas mileage substantially.

We drove up to Seattle in dry weather on Tues. at an overall 39.5 MPG doing 70-75 most of the way (very light traffic for once). The problem with going 60 or under is that you get stuck behind the big trucks which throw rocks back at you. Less chance of that in the fast lane.

We pretty much get the EPA estimated mileage, and are very happy with that.

Pars · 02-15-2007, 06:51 PM

Ditto. I agree with foober.

If you want to get nit-picky, 110km/hr against-the-wind and 130km/hr with-the-wind seems like a good cruising speed on the highway. Once you get it up to speed, it likes to cruise.

I haven't found any efficient way to drive it in the city to optimize fuel consumption. With my old Civic, light-footing it around the city returned awesome fuel consumption, while aggressive driving will cause the fuel consumption to increase (get worst) by whopping 40%. In the Yaris, there's not a huge difference between conservative driving vs aggressive driving. With the Yaris, the difference in consumption (aggressive vs conservative) is more like 20%. Some might think 20% increase is a lot, but not so if you ever witness me painting the streets with my rubber.

Typer73 · 02-15-2007, 07:25 PM

I think I'm with you Pars. As long as I'm getting over 30mpg, I'll keep beating everybody at the stop lights & going 80 on the highway. Besides, around here if you try to go 55, you'll be an oily spot on the road!

mcstarbucks · 02-15-2007, 09:23 PM

0 mph.

Doc Zaius · 02-15-2007, 09:49 PM

Quote:

Originally Posted by mcstarbucks

0 mph.

Idling? You'd get 0 MPG then! I don't think thats very economical!

Go4th · 02-16-2007, 07:27 PM

I would guess about 50mph in top gear where your car feels like its just idling along and your barley touching the gas pedal if at all.

Black Yaris · 02-16-2007, 08:32 PM

35mph in 5th gear

Kaotic Lazagna · 02-17-2007, 03:09 AM

i get the best mpg when i go between 55 and 60 mph in 5th gear.

Kaotic Lazagna · 02-17-2007, 03:10 AM

Quote:

Originally Posted by foober

from what I've seen from my yaris. Its the acceleration that eats up the gas. ONce your at a certain cruising speed the gas milage is about the same unless you go very fast. Even then. ON the highway going at a steady 75 I get over 40 miles to the gallon.

i also agree with harsh acceleration.

hmmm, i guess the cross and head-winds here in Sac are a killer. i can't drive 75 mph and still manage to get 40 mpg.

Pars · 02-17-2007, 11:16 AM

Quote:

Originally Posted by Kaotic Lazagna

i also agree with harsh acceleration.

hmmm, i guess the cross and head-winds here in Sac are a killer. i can't drive 75 mph and still manage to get 40 mpg.

I'm sure a few extra mpg could be had by keeping the speeds well under 75mph, but the 2mpg isn't worth being harassed in the slow lane when you could be making tracks in the fast lane or at least avoid getting pelted by rocks when the trucks are overtaking (It's usually when they change lane that the stones get kicked-up).

The country hwy are the best for slow speed cruising (50mph)....at those speeds, my old 98 Civic could get better fuel consumption then my new Yaris, but at faster speeds, the Yaris gets better consumption.

gonzo452001 · 02-17-2007, 12:04 PM

My 5-speed only get 33 to 35 if i drive over 65mph wonder if the autotrans is better at high speeds

Kaotic Lazagna · 02-17-2007, 01:08 PM

Quote:

Originally Posted by Pars

I'm sure a few extra mpg could be had by keeping the speeds well under 75mph, but the 2mpg isn't worth being harassed in the slow lane when you could be making tracks in the fast lane or at least avoid getting pelted by rocks when the trucks are overtaking (It's usually when they change lane that the stones get kicked-up).

for me, i can at least get 45 mpg if i constantly drive 55 mph. but when i drive 75 mph constantly, it'll drope to 35 - 38 mpg.

hystria · 02-17-2007, 03:40 PM

Quote:

Originally Posted by Black Yaris

35mph in 5th gear

what's the rpm at that speed ? if it is around 1500rpm it would be indeed the most economical speed.

Kaotic Lazagna · 02-17-2007, 07:19 PM

Quote:

Originally Posted by hystria

what's the rpm at that speed ? if it is around 1500rpm it would be indeed the most economical speed.

yeah, i think it's a tad over 1500.

hans_fh · 02-18-2007, 12:16 AM

My car comes with autotrans

02-15-2007, 02:48 PM	#1
hans_fh Drives: Yaris Join Date: Oct 2006 Location: Utah Posts: 133	What is the most economic speed for Yaris? I am just wondering what how fast I should drive on highway to get the best fuel consumption. THX!

02-15-2007, 04:27 PM	#4
60 Somethings Old Folks View User's Garage Drives: 2007 Yaris LB, 2006 4Runner V8 Join Date: May 2006 Location: Vancouver, USA Posts: 222	foober puts it pretty well - my ScanGauge confirms that acelleration lowers your gas mileage substantially. We drove up to Seattle in dry weather on Tues. at an overall 39.5 MPG doing 70-75 most of the way (very light traffic for once). The problem with going 60 or under is that you get stuck behind the big trucks which throw rocks back at you. Less chance of that in the fast lane. We pretty much get the EPA estimated mileage, and are very happy with that. __________________ We are the proud owners YARI - He's a loaded Silver LB with ATTITUDE! Last edited by 60 Somethings; 02-17-2007 at 12:36 PM.

02-16-2007, 08:32 PM	#10
Black Yaris der Zeck View User's Garage Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006 Location: Toledo, OH Posts: 5,231	35mph in 5th gear __________________

02-17-2007, 12:04 PM	#14
gonzo452001 Drives: 3-door liftback blazing blue Join Date: Oct 2006 Location: French Lick,IN Posts: 185	My 5-speed only get 33 to 35 if i drive over 65mph wonder if the autotrans is better at high speeds __________________ 07 yaris LB 5-speed blazing Blue 07 yaris LB Auto Bayou Blue rostra cruise control oem style foglights 96tacoma 4x4 xcab I4auto Weathertech vent visors Scan GaugeII

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02-15-2007, 03:25 PM	#2
hystria Drives: 2007 Orange Yaris Hb 3Drs Join Date: Dec 2006 Location: Montreal-Canada Posts: 262	55mph

02-15-2007, 03:35 PM	#3
foober Drives: two yaris liftbacks Join Date: Jan 2006 Location: kalispell, montana Posts: 351	from what I've seen from my yaris. Its the acceleration that eats up the gas. ONce your at a certain cruising speed the gas milage is about the same unless you go very fast. Even then. ON the highway going at a steady 75 I get over 40 miles to the gallon.

02-15-2007, 06:51 PM	#5
Pars Drives: 07 Yaris Liftback Join Date: Aug 2006 Location: Toronto Posts: 418	Ditto. I agree with foober. If you want to get nit-picky, 110km/hr against-the-wind and 130km/hr with-the-wind seems like a good cruising speed on the highway. Once you get it up to speed, it likes to cruise. I haven't found any efficient way to drive it in the city to optimize fuel consumption. With my old Civic, light-footing it around the city returned awesome fuel consumption, while aggressive driving will cause the fuel consumption to increase (get worst) by whopping 40%. In the Yaris, there's not a huge difference between conservative driving vs aggressive driving. With the Yaris, the difference in consumption (aggressive vs conservative) is more like 20%. Some might think 20% increase is a lot, but not so if you ever witness me painting the streets with my rubber.

02-15-2007, 07:25 PM	#6
Typer73 Tired of the Stars! View User's Garage Drives: '07 Meteorite LB Join Date: Dec 2006 Location: NE GA Posts: 281	I think I'm with you Pars. As long as I'm getting over 30mpg, I'll keep beating everybody at the stop lights & going 80 on the highway. Besides, around here if you try to go 55, you'll be an oily spot on the road!

02-15-2007, 09:23 PM	#7
mcstarbucks Drives: blazing blue 5sp HB Join Date: Dec 2006 Location: Indiana Posts: 12	0 mph.

02-16-2007, 07:27 PM	#9
Go4th View User's Garage Drives: Yaris S Sedan color Flint Mica Join Date: Jan 2007 Location: Country: USA, State: Georgia, City: Hampton Posts: 284	I would guess about 50mph in top gear where your car feels like its just idling along and your barley touching the gas pedal if at all.

02-17-2007, 03:09 AM	#11
Kaotic Lazagna View User's Garage Drives: '14 GT86, '08 Vitz Join Date: Dec 2006 Location: Central Valley, CA Posts: 9,873	i get the best mpg when i go between 55 and 60 mph in 5th gear.

02-18-2007, 12:16 AM	#18
hans_fh Drives: Yaris Join Date: Oct 2006 Location: Utah Posts: 133	My car comes with autotrans