Home · FAQ · New Posts · My Posts · PMs · Search · Members · Members Map · Calendar · Profile · Donate · Register · Log In |
Home > General > More mpg from an Auto in 'manual' |
|
|
The Doc Member Since: 06 Jan 2007 Posts: 704 |
I do this a lot |
||
18th Jan 2010 1:19 pm |
|
Big Dave Member Since: 22 Nov 2009 Location: Yorkshire Posts: 1055 |
Being an intelligent auto it decides on its gears based on a few different factors...the first being your driving style. If you're quite heavy with your right foot it'll stay in a lower gear more often. However, changing up to a higher gear isn't always (with some exceptions) best in any way. The reason for this is as follows. The car isn't necessarily more fuel effiecient because it is running at lower revs. What matters is how much the throttle is being pressed. The freelander makes maximum torque (not power which isn't that important in this instance) at about 1750 rpm. The gearbox will try to keep the revs around this point at steady cruising, unless at very low speed for a couple of reasons, 1 is that if you want to accelerate it will accelerate hard, the second is that compared to lower revs (for example 1100 which is what I'm guessing the tacho approximately drops to when you manually change up) the throttle doesn't have to be pressed as hard.
|
||
18th Jan 2010 1:46 pm |
|
mcphersonstrut Member Since: 21 Jul 2009 Location: In the land of 2 wheel drive and 60mpg Posts: 2164 |
Thanks for the comments Doc & BD . BD is yours left in auto all the time ? yet you still get 30 mpg |
||
18th Jan 2010 1:50 pm |
|
npinks Member Since: 28 Jun 2007 Location: Ls25 Posts: 20090 |
the auto often sets off in second gear, unless you floor it and it drops to first
|
||
18th Jan 2010 1:56 pm |
|
The Doc Member Since: 06 Jan 2007 Posts: 704 |
Driving style is normally the problem with MPG |
||
18th Jan 2010 1:59 pm |
|
Big Dave Member Since: 22 Nov 2009 Location: Yorkshire Posts: 1055 |
Yep always in Auto...I lied slightly...in the deep snow we've had it's dropped to the high 20's. But ye, I very rarely use manual except in said situations, and if I want so engine braking.
|
||
18th Jan 2010 2:04 pm |
|
mcphersonstrut Member Since: 21 Jul 2009 Location: In the land of 2 wheel drive and 60mpg Posts: 2164 |
Mileage +/- 15k (march 08 car) |
||
18th Jan 2010 2:19 pm |
|
mcphersonstrut Member Since: 21 Jul 2009 Location: In the land of 2 wheel drive and 60mpg Posts: 2164 |
Doc driving style most certainly related to mpg....if we were booting it everywhere then I'd accept to pay the price on mpg but really were not. In fact I don't think it is possible to drive anymore sedately than we are
|
||
18th Jan 2010 2:24 pm |
|
AndyT Member Since: 28 Dec 2008 Location: West Yorkshire Posts: 447 |
Last year, the dealer did a routine ECU firmware update on mine and I noticed a significant drop in economy. I took it back some weeks later and asked them to revert to the old version. They said there'd been another release since so they loaded that instead. Economy then returned to almost as good as previous.
|
||
18th Jan 2010 3:03 pm |
|
The Doc Member Since: 06 Jan 2007 Posts: 704 |
mcphersonstrut - whats your MPG and what is the vehicles duty? |
||
18th Jan 2010 3:11 pm |
|
mcphersonstrut Member Since: 21 Jul 2009 Location: In the land of 2 wheel drive and 60mpg Posts: 2164 |
Doc - 150 miles per week with a round trip of 30 miles on a Mon, Wed & Friday ('A' roads speed 30/40/60 Not motorway) then about 50 or 60 miles at the weekend but I think that could be the bit that is hurting it (Kids drop off pick up, shopping etc 5 or 6 mile journeys).
|
||
18th Jan 2010 3:42 pm |
|
The Doc Member Since: 06 Jan 2007 Posts: 704 |
I think I'd be checking your car for faults - maybe air flow meter
|
||
18th Jan 2010 5:03 pm |
|
Ralphk Member Since: 03 Apr 2009 Location: Skulking around with me golf clubs Posts: 476 |
Mcpherson Strut, I have an auto XS with 5K on clock and solo averages 26.5 mpg (mainly short distances to golf club etc. with occasional burst up M5 to see number 2 daughter, but never above 75-80 mph) . With the 1500kg caravan on the hook the mpg falls to 22-23.5 mpg.
|
||
18th Jan 2010 5:10 pm |
|
Tandemman Member Since: 30 Jun 2007 Location: Barnsley Posts: 686 |
I've got 4K on my auto now never dropped below 30 mpg and my commute to work is 4.5 miles, i think you may have a problem . I did get about 38 tn 40 mpg with the manual so it could be due to driving style.
|
||
18th Jan 2010 5:19 pm |
|
|
All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis