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I have been reading posts for a couple of months now...this is my first message. I am getting my car sometime this week and I was reading the messages posted earlier about the ECT PWR switch. Does it hurt the car to drive with switch on all the time? Should I not use it in my break in period like cruise control? I am soooooooooooooooooo excited!!!!!!!!
 

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I plan to leave the switch off during my break in period, and then turn it on the rest of the life of the car
 

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It won't hurt the car, just your wallet. It will shift in higher rpm so your mileage isn't going to be good at all. I suggest you not to use it unless you really want to have fun.
 

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What is do you consider break in time. i have gone 500 but some of my friends went to 1000 with their new cars. How can you stand driving with out flooring it once in a while. : )

Love the driving.
 

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I would say that you can leave in on all the time, regardless of break-in period.

In the end, your automatic transmission is still: automatic. That is, it will do what it deems most appropriate for the car according to the current conditions.

With ECT PWR "on", it will "kickdown" more readily. However, in terms of holding upshifts longer, I don't think it's a "set" schedule that is "shifted up in rpm" by a set amount--I mean, it still takes into account the throttle position and makes its own judgements still.

If you were worried about not exceeding a certain RPM (say, 4000) during your break-in period, that would depend more on your foot's "will" than the ECT PWR shifting schedule.

The ECT PWR "on" WILL affect your overall gas mileage and reduce it somewhat, though.
 

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Originally posted by toyotatech:
The ECT PWR "on" WILL affect your overall gas mileage and reduce it somewhat, though.
I just finished a full tank of gas with the ECT PWR "on" and the mileage? 348 miles with a 15.9 gal fill. That's about 21.8 mpg. Prior fillup -- 344 with 15.4 gal fill = 22.3 mpg. So it did effect gas mileage...but the effect could be considered nothing (considering standard deviation and other statistic mathematics). Having the switch on just makes driving the IS much more run and lively
 

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I drove from NYC to Niagara Falls on one tank of gas without ECT POWER!! THAT IS GREAT! Never did that in my whole life with any other car? Thats about 420 miles. I think I guzzled gas in the city pulling up to Honda wannbees... Use ECT wisely.... when you think you need that extra edge. I dont use mine for cruising around. gas is getting expensive remember??
 

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How the f*ck do you guys drive ? I've been driving it moderately (keeping the RPM below 4k), and without the PWR button on, yet I'm getting 17.1 mpg at last fill up.

--k
 

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i'm getting approx. 21.8 mpg each time i fill up. it's been on and off because of the traffic in the washington/metro area.
i haven't been driving with ect on though.

i'm a driver!! app. 2500 miles now

Marlon
white IS300
loaded w/o LSD
 

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Originally posted by chiem:

How the f*ck do you guys drive ? I've been driving it moderately (keeping the RPM below 4k), and without the PWR button on, yet I'm getting 17.1 mpg at last fill up.

--k
how are you calculating your mileage? i get around 20-23 mpg, depending on how i drive.
 
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