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Old 01-20-2014, 03:29 AM
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5 Speed vs 8 Speed ?

Having now done 10,000km in the MY14 8 speed diesel and having also owned a 5 speed 2011 5 speed diesel I can say with confidence that the 5 speed was quicker off the mark.

Has anyone else experienced the same, the salespeople I have spoken to have told a similar story, I find the 8 speed excellent but doubt it would compete with the older 5 speed in some situations.

On another note I found the 5 speed better on sand, it seemed to like to stay in 2nd or 3rd and did it easy, the 8 speed wants to change up to far, like 6th 7th etc, this starts to labour the engine and the use of the paddle shifters is needed. Just my observations, anyone else have any comparisons?
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Old 01-20-2014, 04:26 AM
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Re: 5 Speed vs 8 Speed ?

Interesting observations. Two reasons I bought the CRD, 1. Drag people off at lights and drive on sand, looks like I'll keep the MY 12 a bit longer....

On a side note you'd be one of the first to go second generation WK2.... Know of any others?
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Old 01-20-2014, 06:00 AM
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Re: 5 Speed vs 8 Speed ?

Does that also apply when Eco mode is off, or Sport mode is on?
I notice quite a difference once you get Eco mode off, it is retarded on start off, revs too high before moving.

Same for Sand driving, sport mode help to keep it down a gear or two?
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Old 01-20-2014, 06:01 AM
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Re: 5 Speed vs 8 Speed ?

Quote:
Originally Posted by AussieJeep View Post
Having now done 10,000km in the MY14 8 speed diesel and having also owned a 5 speed 2011 5 speed diesel I can say with confidence that the 5 speed was quicker off the mark.

Has anyone else experienced the same, the salespeople I have spoken to have told a similar story, I find the 8 speed excellent but doubt it would compete with the older 5 speed in some situations.

On another note I found the 5 speed better on sand, it seemed to like to stay in 2nd or 3rd and did it easy, the 8 speed wants to change up to far, like 6th 7th etc, this starts to labour the engine and the use of the paddle shifters is needed. Just my observations, anyone else have any comparisons?
I have driven both and it isn't even a contest.

My13 0-100 8.2 secs My14 0-100 7.4 secs.
My13 177kw and 550 nm My14 184kw and 570 nm.

Driving the My 13 on the same routes as the My14 the economy on the My14
(consistent driving style) the My14 is 10-15% more economical as per brochure.
I found it impossible to duplicate fuel economy on the My13.

Cruise at 110kph at around 1650rpm and My13 nearly 2500rpm by memory,

Elvin
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Old 01-21-2014, 05:18 AM
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Re: 5 Speed vs 8 Speed ?

Quote:
Originally Posted by Elvin View Post
I have driven both and it isn't even a contest.

My13 0-100 8.2 secs My14 0-100 7.4 secs.
My13 177kw and 550 nm My14 184kw and 570 nm.

Driving the My 13 on the same routes as the My14 the economy on the My14
(consistent driving style) the My14 is 10-15% more economical as per brochure.
I found it impossible to duplicate fuel economy on the My13.

Cruise at 110kph at around 1650rpm and My13 nearly 2500rpm by memory,

Elvin
No doubt the MY14 is quicker 0-100, MY13 2200 revs at 110 and the MY14 1850 revs at 110, yes I know it has more power and torque but it also has a lower 1st gear and a higher 8th or final gear hence the rev diff at 100 etc, I was really only talking about take off at lights etc, not a drag or any thing like that. I still think 0-40k the 5 felt more responsive.
SNUKE It is an interesting observation by you, I rarely remember to turn off eco mode so you may be right, that may be the difference, having said that its a shame if it is the difference because fuel economy in real life isn't that different.
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Old 01-21-2014, 06:07 AM
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Re: 5 Speed vs 8 Speed ?

What about shifts, I know a handful people have complained about their 8sp being rough.
Ours is silky smooth, don't even notice it most of the time.

How do you find it compared to the 5sp?
The reviews that mentioned said it was a great improvement.

Either it was alway going to have the biggest help for the 3.6lt.
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Old 01-21-2014, 06:48 AM
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Re: 5 Speed vs 8 Speed ?

People mistake hunting for roughness.
Modern cars have their gearboxes setup to get to top gear quickly, this saves fuel.
Most modern cars I have driven tend to change gears WAY more than they should.
It is all to do with sucking the last 10th out of fuel consumption test and bugger the poor car owner.
Hopefully one day we can program our own driving style into a car.
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Old 01-21-2014, 07:36 PM
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Re: 5 Speed vs 8 Speed ?

Does eco mode only change the shiftpoints? Does it have it's own set of S mode shiftpoints, or does S basically turn eco mode off?


Quote:
Originally Posted by ENFORCER View Post
Hopefully one day we can program our own driving style into a car.
I loved the million different driving modes in the X3.
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Old 01-21-2014, 07:53 PM
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Re: 5 Speed vs 8 Speed ?

Ive owned a Durango with the merc 5 speed and an SRT with the merc 5 speed. The ZF 8 speed in my 2014 is night and day better. Not even gonna go into who, what, where or why? The 8 speed is that much better....
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Old 01-21-2014, 08:02 PM
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Re: 5 Speed vs 8 Speed ?

Eco Off and Sport mode are different. Eco off will upshift later and downshift earlier than Eco, but not sure if they are the same points as Sport.
What is for sure different is that Sport will run along at a lower gear than Eco off. Eg, 80km Eco off = 8th gear, Sport = 7th.
If you have QL, then Eco and Sport both engage Aero, but Eco off will not engage Aero mode.

I think I will pay attention when next driving and see if the upshift are at different points for Eco off and Sport.

When the Fuel Economy (ECO) Mode is engaged, the
vehicle control systems will change the following:
• The transmission will upshift sooner and downshift
later.
• The overall driving performance will be more conservative.
• Some ECO mode functions may be temporarily inhibited
based on temperature and other factors.


SPORT (S)
This mode alters the transmission’s automatic shift schedule for sportier driving. Upshift speeds are increased to make full use of available engine power. To switch between DRIVE and SPORT modes, tap the shift lever rearward. SPORT mode is only accessible from DRIVE.
NOTE: When Sport Mode is enabled, the vehicle’s air suspension system will operate in “Aero” Mode. Please refer to “Quadra Lift” within this section for further information.
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Old 02-25-2014, 01:14 AM
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Re: 5 Speed vs 8 Speed ?

What is this "eco" mode that you are all talking about?
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Old 02-25-2014, 01:53 AM
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Re: 5 Speed vs 8 Speed ?

The Fuel Economy (ECO) mode can improve the vehi-
cle’s overall fuel economy during normal driving condi-
tions. Press the “eco” switch in the center stack of the
instrument panel and a amber light will indicate the ECO
mode is engaged.
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