Omega Owners Forum

Chat Area => General Car Chat => Topic started by: STEMO on 16 July 2020, 21:53:20

Title: Diesel economy
Post by: STEMO on 16 July 2020, 21:53:20
(https://i.ibb.co/DpRB6fX/0-E419-FBF-F095-4788-A854-C45-DD375-D085.png) (https://ibb.co/rswBL2P)
Title: Re: Diesel economy
Post by: STEMO on 16 July 2020, 21:54:38
Must've found a 900 mile long hill to drive down.
Title: Re: Diesel economy
Post by: dave the builder on 16 July 2020, 21:58:35
must do a lot of downhill, wind behind driving to get that

oh , that was what you put as a reply , too slow

or his trip computer is telling fibs

my trip computer tells the truth , disappointingly 23 ish MPG  ;D
Title: Re: Diesel economy
Post by: STEMO on 16 July 2020, 22:03:09
must do a lot of downhill, wind behind driving to get that

oh , that was what you put as a reply , too slow

or his trip computer is telling fibs

my trip computer tells the truth , disappointingly 23 ish MPG  ;D
If we ignore the trip and the fuel gauge, he could have just coasted downhill in neutral for a mile or so, I suppose.
Title: Re: Diesel economy
Post by: STEMO on 16 July 2020, 22:04:33
Wifey has the 1.6, 135bhp astra k and can easily get 60mpg on a run.
Title: Re: Diesel economy
Post by: neil74 on 16 July 2020, 22:20:47
Mine tells me fairly regularly that I've done anywhere between 28-32 MPG in a 2.6 V6..
Title: Re: Diesel economy
Post by: Marks DTM Calib on 17 July 2020, 09:25:42
must do a lot of downhill, wind behind driving to get that

oh , that was what you put as a reply , too slow

or his trip computer is telling fibs

my trip computer tells the truth , disappointingly 23 ish MPG  ;D
If we ignore the trip and the fuel gauge, he could have just coasted downhill in neutral for a mile or so, I suppose.

That uses more fuel than keeping it in gear
Title: Re: Diesel economy
Post by: Marks DTM Calib on 17 July 2020, 09:28:30
So the Velar this week did 52mpg on the commute (that's for the full door to door trip, about 70miles).

I even did a 20 mile trip up the Fosse in a 405 (BIG Range Rover - SV special with full exec pack in the back, so weighs the same as the moon) petrol PHEV (although the PHEV battery was flat), driving like an old lady, 31mpg  ???

Title: Re: Diesel economy
Post by: Rangie on 17 July 2020, 09:33:53
My 2007 Range Rover Sport TDV8 does exactly as described in the manual 25mpg in town 31mpg on a run , towing the 26ft twin axle caravan down to 22mpg all acceptable to me. The best mpg I had from a diesel was my Mazda6 ranged between 46-62mpg.
Title: Re: Diesel economy
Post by: TheBoy on 17 July 2020, 17:30:20
Well, the dirty, smelly Pussy does around 32mpg. Trip computer always reckons around 38mpg though
Title: Re: Diesel economy
Post by: Field Marshal Dr. Opti on 17 July 2020, 17:46:39
Well, the dirty, smelly Pussy does around 32mpg. Trip computer always reckons around 38mpg though

Yep.....trip computer on my Indian is about 15% optimistic..........and it's only showing 21.4MPG. :-\
Title: Re: Diesel economy
Post by: biggriffin on 17 July 2020, 19:40:58
must do a lot of downhill, wind behind driving to get that

oh , that was what you put as a reply , too slow

or his trip computer is telling fibs

my trip computer tells the truth , disappointingly 23 ish MPG  ;D
If we ignore the trip and the fuel gauge, he could have just coasted downhill in neutral for a mile or so, I suppose.

That uses more fuel than keeping it in gear


 My Volvo goes into N going down hill on its own, and on the flat, most modern trucks do Eco-roll
Title: Re: Diesel economy
Post by: Doctor Gollum on 17 July 2020, 19:58:19
That has never made sense to me... It's like switching OFF a 500+ bhp brake ::)
Title: Re: Diesel economy
Post by: Kevin Wood on 17 July 2020, 23:22:02
That has never made sense to me... It's like switching OFF a 500+ bhp brake ::)

Yep, most engines just cut fuel on the overrun these days so it's a bit daft to take them out of gear.
Title: Re: Diesel economy
Post by: biggriffin on 18 July 2020, 09:28:21
That has never made sense to me... It's like switching OFF a 500+ bhp brake ::)


With cruise set, the vebs keeps it in check,   no cruise on no Eco-roll, you can st the over run to 110k, set mine at 100k.


Full auto braking at 40tonnes
  https://youtu.be/VOUbtRwi1vw
Title: Re: Diesel economy
Post by: Field Marshal Dr. Opti on 18 July 2020, 14:17:22
That has never made sense to me... It's like switching OFF a 500+ bhp brake ::)


With cruise set, the vebs keeps it in check,   no cruise on no Eco-roll, you can st the over run to 110k, set mine at 100k.


Full auto braking at 40tonnes
  https://youtu.be/VOUbtRwi1vw

How does the braking distance compare with a car, BG?

Surely weight must play a part.
Title: Re: Diesel economy
Post by: biggriffin on 18 July 2020, 17:32:47
We don't have any with this full auto emergency braking system, the on board ecu work it all out, that video used a full loaded outfit, so it weighs in at 40tonnes,  looking at when it starts to brake, I'd be crapping myself, same as when using acc, you do get bloody close before it slows up.

 Allegedly were getting some new units around Christmas so should have acc, and Anti-collision braking,, don't think I'm going to see if they work... :o
Title: Re: Diesel economy
Post by: Doctor Gollum on 18 July 2020, 18:58:50
We don't have any with this full auto emergency braking system, the on board ecu work it all out, that video used a full loaded outfit, so it weighs in at 40tonnes,  looking at when it starts to brake, I'd be crapping myself, same as when using acc, you do get bloody close before it slows up.

 Allegedly were getting some new units around Christmas so should have acc, and Anti-collision braking,, don't think I'm going to see if they work coming of a moist roundabout into a tight entrance... :o
Let us know if you soil yourself when it kicks in :D
Title: Re: Diesel economy
Post by: biggriffin on 18 July 2020, 19:56:06
We don't have any with this full auto emergency braking system, the on board ecu work it all out, that video used a full loaded outfit, so it weighs in at 40tonnes,  looking at when it starts to brake, I'd be crapping myself, same as when using acc, you do get bloody close before it slows up.

 Allegedly were getting some new units around Christmas so should have acc, and Anti-collision braking,, don't think I'm going to see if they work coming of a moist roundabout into a tight entrance... :o
Let us know if you soil yourself when it kicks in :D


 The EBS/ABS anti roll stops all that,  as does TC, they all work together,, the days of having the unit going one way trailer going the other as you exit roundabouts, have gone,   :'(   

The damp roundabouts to gateways is easily stopped, don't press the loud pedal to much, O and go slower,  the other reason that happens is the trailer is pushing the unit, causing the unit to understeer, and not getting traction, very common on 6x2.. too fast
Title: Re: Diesel economy
Post by: Doctor Gollum on 18 July 2020, 20:13:18
The DAF system is dangerously stupid... Applies full braking with lots of angry boings if the camera sees something that it thinks you're about to hit... Like a gate post or bollard as you swing round it with any vigour...

Really annoying first time it happens, but most entertaining if you've passengers who aren't expecting it ;D
Title: Re: Diesel economy
Post by: biggriffin on 19 July 2020, 06:00:22
The DAF system is dangerously stupid... Applies full braking with lots of angry boings if the camera sees something that it thinks you're about to hit... Like a gate post or bollard as you swing round it with any vigour...

Really annoying first time it happens, but most entertaining if you've passengers who aren't expecting it ;D
.

 Ar yes the DAF system, haven't heard one good thing about that yet, it can be deactivated, so I'm told by pressing the switch for 20secs on initial start up. Same as eco mode needs switching off too.
Title: Re: Diesel economy
Post by: Doctor Gollum on 19 July 2020, 11:43:28
 :y

I shall try that next time i have the misfortune to drive one...
Title: Re: Diesel economy
Post by: biggriffin on 19 July 2020, 13:46:32
:y

I shall try that next time i have the misfortune to drive one...


 Some are dealer programed, so the system cannot be switched off,  also if it does turn off, the Bing bongs will still sound