Notices
GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

ECT Saving Gas

Thread Tools
 
Search this Thread
 
Old Dec 4, 2010 | 08:29 AM
  #1  
bigblack06's Avatar
bigblack06
Thread Starter
CL Community Team
15 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Nov 2009
Posts: 7,103
Likes: 368
From: Beantown
Post ECT Saving Gas

Yes just like it sounds, I have been testing this for two weeks and it seems that everytime I have the ect on I save more gas and gain better gas mileage that it off. yes it does not make sense to me either but I'll fill my tank and then drive a week and the ect will get me a good 28.7MPG while with it off I only get 19MPG I can't explain, but can anyone else explain how this is happening isn't it suppose to be the opposite way.
Reply
Old Dec 4, 2010 | 10:41 AM
  #2  
rominl's Avatar
rominl
exclusive matchup
20 Year Member
Liked
Community Favorite
Top Answer: 1
iTrader: (4)
 
Joined: May 2002
Posts: 81,825
Likes: 410
From: Lovely OC
Default

when it's that big of a jump, it actually tells me something isn't right

i tried weeks with ect on different modes. made no difference in my gas consumption
Reply
Old Dec 4, 2010 | 11:23 AM
  #3  
greg0723's Avatar
greg0723
Lead Lap
 
Joined: Mar 2008
Posts: 578
Likes: 2
From: Connecticut
Default

ect snow or pwr?
Reply
Old Dec 4, 2010 | 11:25 AM
  #4  
bigblack06's Avatar
bigblack06
Thread Starter
CL Community Team
15 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Nov 2009
Posts: 7,103
Likes: 368
From: Beantown
Default

Originally Posted by rominl
when it's that big of a jump, it actually tells me something isn't right

i tried weeks with ect on different modes. made no difference in my gas consumption
ECT Pwr sorry bout that, so do you think I have something wrong
Reply
Old Dec 4, 2010 | 11:54 AM
  #5  
worker's Avatar
worker
Lexus Champion
 
Joined: Aug 2009
Posts: 2,080
Likes: 6
From: of insanity
Default

Happy Feet in action?
Reply
Old Dec 4, 2010 | 12:29 PM
  #6  
Rider's Avatar
Rider
Lexus Test Driver
 
Joined: Aug 2009
Posts: 924
Likes: 0
From: Middle East
Default

With or without, I never get better than 15MPG even though my driving is not very spirited... maybe due to 70% city driving...
Reply
Old Dec 4, 2010 | 12:38 PM
  #7  
I8ABMR's Avatar
I8ABMR
Lexus Fanatic
 
Joined: Sep 2007
Posts: 22,608
Likes: 105
From: Waiting for next track day
Default

I used to notice the opposite when I had my GS350. The ECT will prompt the tranny to drop gears and increase engine rpm much more readily. So it doesnt make sense to me either
Reply
Old Dec 4, 2010 | 01:44 PM
  #8  
worker's Avatar
worker
Lexus Champion
 
Joined: Aug 2009
Posts: 2,080
Likes: 6
From: of insanity
Default

City driving really kill gas mileage. All those ponies can't stretch their feet. Hybrid or all electric should do alot better in city, they are the jack rabbit type.

Anyway, you can't monitor mpg in city... the traffic is too sporadic.
Reply
ClubLexus Stories

Celebrating Lexus & Toyota from Around the Globe

story-0

10 Lexus Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-1

8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

 Michael S. Palmer
story-2

10 Best Lexus Models No One Remembers

 Joe Kucinski
story-3

TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

 Michael S. Palmer
story-4

Top 10 Lexus & Toyotas to Drive Before You Die!

 Joe Kucinski
story-5

Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

 Joe Kucinski
story-6

Lexus LC500 Convertible Auction: A Preview of Rising Values?

 Brett Foote
story-7

GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

 Michael S. Palmer
story-8

9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

 Joe Kucinski
story-9

2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

 Brett Foote
Old Dec 4, 2010 | 06:02 PM
  #9  
rominl's Avatar
rominl
exclusive matchup
20 Year Member
Liked
Community Favorite
Top Answer: 1
iTrader: (4)
 
Joined: May 2002
Posts: 81,825
Likes: 410
From: Lovely OC
Default

Originally Posted by bigblack06
ECT Pwr sorry bout that, so do you think I have something wrong
you aren't the first one i heard about this. i tried myself, in pwr mode the engine tends to kick down on gear and rev higher more easily, and from my 2 week's testing, my gas mileage were noticeably worse than normal
Reply
Old Dec 4, 2010 | 06:27 PM
  #10  
BinaryJay's Avatar
BinaryJay
Pole Position
 
Joined: Oct 2009
Posts: 3,154
Likes: 14
From: Toronto
Default

I don't notice much of a difference myself. On the highway there should be absolutely no difference if you're just cruising.

What RPM is your engine working at when going say, 45 mph? Is it different depending on PWR ect or Normal? It really should be the same, the only difference should be how readily the transmission decides to upshift or downshift.
Reply
Old Dec 4, 2010 | 06:36 PM
  #11  
rominl's Avatar
rominl
exclusive matchup
20 Year Member
Liked
Community Favorite
Top Answer: 1
iTrader: (4)
 
Joined: May 2002
Posts: 81,825
Likes: 410
From: Lovely OC
Default

Originally Posted by BinaryJay
I don't notice much of a difference myself. On the highway there should be absolutely no difference if you're just cruising.

What RPM is your engine working at when going say, 45 mph? Is it different depending on PWR ect or Normal? It really should be the same, the only difference should be how readily the transmission decides to upshift or downshift.
correct, and also the gas pedal gets a bit more sensitive, so pressing in the same amount the car will rev up a bit faster / more. and in my case, that's how it killed my gas mileage, coz' i found the car down shifting more often and up shifting later (higher rev)
Reply
Old Dec 4, 2010 | 06:53 PM
  #12  
bigblack06's Avatar
bigblack06
Thread Starter
CL Community Team
15 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Nov 2009
Posts: 7,103
Likes: 368
From: Beantown
Default

Originally Posted by BinaryJay
I don't notice much of a difference myself. On the highway there should be absolutely no difference if you're just cruising.

What RPM is your engine working at when going say, 45 mph? Is it different depending on PWR ect or Normal? It really should be the same, the only difference should be how readily the transmission decides to upshift or downshift.
don't really know how many rpms but will check tom. and see what it is
Reply
Old Dec 4, 2010 | 06:59 PM
  #13  
vwynn's Avatar
vwynn
Lexus Fanatic
iTrader: (4)
 
Joined: Feb 2007
Posts: 5,945
Likes: 53
From: CA
Default

ECT just lets you ride the gears longer and more sensitive to down shifting when you are on the gas...
Reply
Old Dec 5, 2010 | 04:34 AM
  #14  
bigblack06's Avatar
bigblack06
Thread Starter
CL Community Team
15 Year Member
Liked
Loved
Community Favorite
iTrader: (20)
 
Joined: Nov 2009
Posts: 7,103
Likes: 368
From: Beantown
Default

Originally Posted by BinaryJay
I don't notice much of a difference myself. On the highway there should be absolutely no difference if you're just cruising.

What RPM is your engine working at when going say, 45 mph? Is it different depending on PWR ect or Normal? It really should be the same, the only difference should be how readily the transmission decides to upshift or downshift.
around 2500 to 3000 normal driving never really higher than that
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Wiley9
LS - 3rd Gen (2001-2006)
17
Oct 11, 2013 04:37 PM
OCLEX03
GS - 2nd Gen (1998-2005)
6
Jul 29, 2010 09:37 PM
mir
Car Chat
11
Sep 17, 2007 11:35 PM
auto228 V8
GS - 2nd Gen (1998-2005)
14
Mar 8, 2006 05:28 PM
JohnsRX
RX - 1st Gen (1999-2003)
7
Jun 8, 2004 07:38 AM




All times are GMT -7. The time now is 12:10 PM.

story-0
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-1
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-2
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-3
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-4
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-5
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-6
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-7
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-8
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-9
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE