Fuel Economy

[ECHOKnight2000]

Originally Posted by jeff_o

argylesocks... from what i understood in your post when you said coasting in N is that you shift to N when coasting at high speed then shift it back to D when you start to slow down to speed up... is that right? will not this be harmful on your tranny?

i have been driving stick shifts for centuries until i shifted to auto tranny, my friend noticed me shifting to N (to conserve gas and help braking) when stopping before the car completely stops, he said this is harmful because of some pressure on the auto tranny. i don't know if this is true for your case of coasting in N then shifting back.

I sometimes put the car in neutral (I have an auto as well). Anyway rarely or even at all I put my car in neutral at highway speeds but if there is little traffic I will put it in neutral and coast to a stop. It will harm your tranny if you're going highway speeds and you coast in neutral and if you accelerate then put it in drive its hard on the tranny but then again doing that in general hurts or wears the parts down faster. Hope that makes sense. When you reach lower speeds and slowing down you can down shift and use engine breaking instead of neutral, then put it in neutral while sitting there. I guess remember if coasting in neutral can be dangerous in case you have to make an evasive manevure so don't do it in heavy traffic (rush hour) but I guess that's a give-in cause I'm sure if traffic was that heavy you can't really coast. I probably confused you even more but that's what I'm here for

[jeff_o]

uhhmmm i've heard about some techniques in down and upshifting on automatic trannies... but how do you do that? do you flick the gas pedal or something? sorry this will be my last OT post :D

[sam07yaris]

Originally Posted by NickNickNick

Your engine light's on.

nope I just put it on IGN III

[sam07yaris]

Originally Posted by jeff_o

uhhmmm i've heard about some techniques in down and upshifting on automatic trannies... but how do you do that? do you flick the gas pedal or something? sorry this will be my last OT post :D

It's heel toe downshifting. For ex: When coming off the highway for your exit, you put your car on the outside curve going in *to the apex* and put the clutch in, BLIP the throttle. < On the yaris you have to kinda hold it there for a millisecond since it takes time for the throttle body response to open up* then shift down to the next gear and release the clutch. Doing this puts less strain on the gears when you slow down or come to a stop. If you are doing it correctly< and I mean CORRECTLY, your car will come to a SMOOTH transition without budging to a stop or when exiting off an off ramp. Any budge and transfer of motion to the front and your tranny's hurtin.

[jeff_o]

hmmm haven't done it but i think i can imagine how you do it from the way you explained it :) i probly need a lil more practice.. thanks guys for sharing anyways :)

[ECHOKnight2000]

Originally Posted by jeff_o

uhhmmm i've heard about some techniques in down and upshifting on automatic trannies... but how do you do that? do you flick the gas pedal or something? sorry this will be my last OT post :D

For automactic you just move the shifter selector down to 2nd, or L gear, some cars are set up 3rd, 2nd, and L, but either way its obviously a lower gear. DON'T have your foot on the gas while shifting to a lower gear or even up. Position D is obviously the most ideal selection for driving, I've heard some people trying to drive their cars like a stick with an auto...starting in L gear then going up to Drive, but don't, it puts more wear and tear on your tranny and its just not made for that cause well, its an Automactic! Anyway as I said earlier, don't be shifting at high speeds, its not good for the tranny cause its taking a beating to the high reving engine-at least for auto. Hope tha helps

[sam07yaris]

Originally Posted by ECHOKnight2000

For automactic you just move the shifter selector down to 2nd, or L gear, some cars are set up 3rd, 2nd, and L, but either way its obviously a lower gear. DON'T have your foot on the gas while shifting to a lower gear or even up. Position D is obviously the most ideal selection for driving, I've heard some people trying to drive their cars like a stick with an auto...starting in L gear then going up to Drive, but don't, it puts more wear and tear on your tranny and its just not made for that cause well, its an Automactic! Anyway as I said earlier, don't be shifting at high speeds, its not good for the tranny cause its taking a beating to the high reving engine-at least for auto. Hope tha helps

sorry i read the member's post too quickly. Thought me was asking for a manual

[ChinoCharles]

Originally Posted by ECHOKnight2000

For automactic you just move the shifter selector down to 2nd, or L gear, some cars are set up 3rd, 2nd, and L, but either way its obviously a lower gear. DON'T have your foot on the gas while shifting to a lower gear or even up. Position D is obviously the most ideal selection for driving, I've heard some people trying to drive their cars like a stick with an auto...starting in L gear then going up to Drive, but don't, it puts more wear and tear on your tranny and its just not made for that cause well, its an Automactic! Anyway as I said earlier, don't be shifting at high speeds, its not good for the tranny cause its taking a beating to the high reving engine-at least for auto. Hope tha helps

Yeah, I've seen an automatic tranny in a Grand Prix basically self destruct from someone having their foot on the gas and dropping the gear at the same time. Big no-no.

[argylesocks]

drove up to burlington, vt this weekend for a race. had my bike/wheels on the hatch rack.

414.1miles / 9.36gal = 44.2mpg!!!

[argylesocks]

Originally Posted by jeff_o

argylesocks... from what i understood in your post when you said coasting in N is that you shift to N when coasting at high speed then shift it back to D when you start to slow down to speed up... is that right? will not this be harmful on your tranny?

i have been driving stick shifts for centuries until i shifted to auto tranny, my friend noticed me shifting to N (to conserve gas and help braking) when stopping before the car completely stops, he said this is harmful because of some pressure on the auto tranny. i don't know if this is true for your case of coasting in N then shifting back.

i have a manual, so this is a totally different case. Yes, i drop it into N when the topography allows me to coast for a while...

i have hurd the same things regarding coasting in an Auto. Best to listen to someone that drives one... maybe they can chime in..

[sam07yaris]

Okay I just filled up the gas.




446.8 miles @ $2.25 /gallon

total gallons 9.68

46.15 mpg
Guys I just broke my record from 434 to 446.8 and could have gone further to my actual goal which was 460 miles, DAMNIT I was that close!

[nsmitchell]

Originally Posted by swng

Just saw sam07Yaris' post on the last page. The useful information is highly appreciated but it looks like my car (the Canadian version) has a different fuel gauge. My gauge only has four bars above the arrow pointer on the side and four below. Eight bars in total. It makes direct comparison difficult. We may have to go back to mpg (imp or US) or the like for a useful comparion because the how many miles/km per bar type of casual comparison may have been rendered irrelevant by the difference in the number of bars.
It is a pleasure to know that somebody has achieved a good fuel economy record for a trip/tank but it is also useful if we can see fellow members' long term average numbers. Carry on sam07Yaris!
BTW, bad drivers exist. Just remain cool all the time. Safe and happy motoring!

Taken from Yaris owners manual.

[tiksman]

first tank 38.6
second tank 37.8
third tank 39.7

It gettin better

[autophile]

What am I doing wrong? Note that I haven't been using A/C.

First tank: 34.4 mpg
Second tank: 36.0 mpg
Third tank: 35.2 mpg

I have a manual shift '07 hatchback. 90% of my driving is at highway speeds, half at around 60 mph, and half at around 75 mph. My shift protocol is to go into 2nd at 10 mph, 3rd at 20 mph, 4th at 30 mph, and 5th at 40 mph.

Help? :)

--Rob

[argylesocks]

Originally Posted by autophile

What am I doing wrong? Note that I haven't been using A/C.

First tank: 34.4 mpg
Second tank: 36.0 mpg
Third tank: 35.2 mpg

I have a manual shift '07 hatchback. 90% of my driving is at highway speeds, half at around 60 mph, and half at around 75 mph. My shift protocol is to go into 2nd at 10 mph, 3rd at 20 mph, 4th at 30 mph, and 5th at 40 mph.

Help? :)

--Rob

try keeping it at 60mph & see where that gets you.
additionally, i coast whenever possible, and try to "look ahead" for my stoplights, so that i rarely end up stopping... i just coast slowly untill its green...

[sam07yaris]

Originally Posted by argylesocks

try keeping it at 60mph & see where that gets you.
additionally, i coast whenever possible, and try to "look ahead" for my stoplights, so that i rarely end up stopping... i just coast slowly untill its green...

OUCH, since it's a liftback, you guys really need that Tachometer.

[foober]

Originally Posted by autophile

What am I doing wrong? Note that I haven't been using A/C.

First tank: 34.4 mpg
Second tank: 36.0 mpg
Third tank: 35.2 mpg

I have a manual shift '07 hatchback. 90% of my driving is at highway speeds, half at around 60 mph, and half at around 75 mph. My shift protocol is to go into 2nd at 10 mph, 3rd at 20 mph, 4th at 30 mph, and 5th at 40 mph.

Help? :)

--Rob

I'm still getting around 38 miles to the gallon with city and highway miles on my manual liftback. Do you punch in the gas pedal. Thats the only thing I can think that you might be doing wrong. I just gradually push on the gas pedal when I speed up. And you should let your car warm up before you take off. I always let my cars or trucks warm up in idle for at least 5 minutes before I take off.

[Pars]

Originally Posted by autophile

What am I doing wrong? Note that I haven't been using A/C.

First tank: 34.4 mpg
Second tank: 36.0 mpg
Third tank: 35.2 mpg

I have a manual shift '07 hatchback. 90% of my driving is at highway speeds, half at around 60 mph, and half at around 75 mph. My shift protocol is to go into 2nd at 10 mph, 3rd at 20 mph, 4th at 30 mph, and 5th at 40 mph.

Help? :)

--Rob

With my first 3 tank of gas, I was also getting around 35mpg, while driving conservatively. I'm still getting the same mileage (at 20,000km), but my driving is significantly more aggressive. So, 35mpg with regular driving isn't that great. If your driving is on the conservative side, perhaps the engine still needs to get broken in a bit more or you're taking short trips in which the engine doesn't have a change to completely warm-up. Also, don't expect the mileage to get any better for the winter arrives.