I feel that by leaving ECT on also improved braking power, maybe through the break booster. It's just a feeling. No evidence to back it up though.

 

Yes, it's a topic that's been discussed before.

I will add though that I've left mine in PWR mode for the last 4-5 months. I get the exact same gas mileage as I did in the normal position. I leave it there because my other car is a stick, and the PWR setting feels more natural to me b/c of that.
I'm not sure why someone would think it caused more stress on your brakes - in my mind it would actually stress them less b/c the car downshifts & holds gear more readily.

 

Not at all. What you're experiencing is the engine braking because the car downshifts quicker.

 

Oh, that makes so much more sense! Thanks for the explination!

 

Only downside I see is when you have passengers and they ask..."We're in a Lexus right? What's with the hard shifting/down-shifting?" LOL!

 

A little update. Went a drove to lunch with the ect ON. Like it wayyyyyyyyyyyyyyyyyy better. much more responsive.

 

But it will be slower from a stop accelerating.

 

Really? I find it slower from 35 mph and up

 

yeah me too, i found it to be more responsive off the start............not saying anything about it being faster or what not.........just quicker to accelerate.

 

yeahhhh guys keep dreaming like it makes it faster)) human imagination is great thing=)

I hope toyota will integrate REAL SPORT MODE for next IS. 2nd IS 250/350 has fake "sport" mode it doesn't do anything to make it faster, and ECT POWER useless works same way as 1995 Camry on ECT Power .

 

I feel a difference in the shift points and downshifting, but have never felt that the car was really any "quicker" in ECT mode. If it is, it is a marginal difference at best.

 

I leave it on in my 250 AWD all the time. I like the extra power and like the harder/longer shifting pattern. It anticipates hard driving in many cases. Good match with my exhaust to create a sportier/aggresive feel. Yes, I know only a 250 but still....

 

x2 on the exhaust note. Didn't mention this in my reply, but very true!

 

I left it on almost a year.i mean I like how the car responsed .The only diff thing I see is about gas tank miles.i see when I fill up my gas tank and It show on my dash 400 miles.before it show 365

 

Yup, really... from a stop, floored, the car is quicker in NORMAL mode than in ECT-PWR mode... as proven with both repeated track testing and Gernbys datalogging... for one thing it actually holds the gears longer in normal mode (shifts 100-200 rpm higher)

ECT-PWR is useful in on/off throttle type driving... here's what it actually does:

https://www.clublexus.com/forums/5807368-post24.html