fuel economy

[rod_vw]

This may sound silly to many of you but I have owned & used a T5.1 (180ps) and a T6 (140ps) the T5.1 having done almost 50k in my ownership and the T6 30k but I have never been aware of either doing a DPF re-gen. Is this because they often do a reasonable quick motorway or dual carriageway run and do it whilst on that type of journey?

Average MPG of these and others to date is...

T6 - 140ps LWB high roof camper - 34.76MPG
T5.1 - 180ps LWB high roof camper - 34.00MPG
T5 - 140ps LWB high roof camper - 31.92MPG
T5 - 174ps LWB high roof camper - 30.44MPG
T4 - 102ps LWB high roof camper - 37.62MPG
T4 - 102ps LWB high roof camper - 34.11MPG
T4 - 78ps LWB high roof camper - 29.18MPG

All calculated from full tank to full tank over the ownership lifetime which averages three years for each.

 

[andys]

This may sound silly to many of you but I have owned & used a T5.1 (180ps) and a T6 (140ps) the T5.1 having done almost 50k in my ownership and the T6 30k but I have never been aware of either doing a DPF re-gen. Is this because they often do a reasonable quick motorway or dual carriageway run and do it whilst on that type of journey?

Average MPG of these and others to date is...

T6 - 140ps LWB high roof camper - 34.76MPG
T5.1 - 180ps LWB high roof camper - 34.00MPG
T5 - 140ps LWB high roof camper - 31.92MPG
T5 - 174ps LWB high roof camper - 30.44MPG
T4 - 102ps LWB high roof camper - 37.62MPG
T4 - 102ps LWB high roof camper - 34.11MPG
T4 - 78ps LWB high roof camper - 29.18MPG

All calculated from full tank to full tank over the ownership lifetime which averages three years for each.

Don't think Euro5s do regens do they?

 

[Hinsley]

Yeah what is the van doing when the fan comes on after driving it?! Mine sounds like a jet engine

I think its knows it can't finish a regen so is trying to either cool or finish burning? Either way, its normal, it might smell but will stop.

 

[rod_vw]

That probably accounts for that then!

 

[Peatey]

The amount of people that stop and look at you as if you have just landed from another planet, when you pull up in a carpark switch the engine off, lock the van then walk away, with the jet engine fan over running knackering up your mpg

 

[Pete C]

Don't think Euro5s do regens do they?

Yes, they do.

Pete

 

[andys]

Yes, they do.

Pete

Learn something new everyday I went straight from Eu4 T5 to Eu6 T6 so never had one

 

[DaveyB]

I have a 180 e5 T6, have never been aware of it doing a regen. Got 640 miles out of the last tank of diesel.

 

[Beejay]

Resurrecting an old thread but, Is there any way of controlling regens? I filled my 102 manual panel van with v-power diesel as I do every third tank and it has gone to regen 5 times that I am aware of, I am now at 40 mile range left in tank and I've only done 256 miles since filling! By comparison, my previous 102 T5.1 returned at least 500 miles from a tank doing the same job.
I have trailed it back to Vw but was told there were no fault codes so van is as it should be!

I'm led to believe that regen is every 2 hours of engine run time. Seems correct by my observation. So no point trying to get around it by high revs/low gears etc.
Annoyingly 2 hours points seem to be when I'm parking.

 

[Skyliner33]

I have a 180 e5 T6, have never been aware of it doing a regen. Got 640 miles out of the last tank of diesel.

I have a Eu5 T6 180 also. I have never noticed it do a regen. To the point now I concentrating on trying to notice one happening.

 

[Dilbert]

I have a 180 e5 T6, have never been aware of it doing a regen

Same here with a Euro5 T6 140ps and never been aware of any regens.

 

[k22102]

These regens baffle me, just covered 65 miles on 'A' class road, got back to the office and parked up, everything ok. Came back out 30 mins later and drove a mile home, switched van off and I've interrupted a regen as the fan now sounds like the van is getting ready for lift off.

 

[Tiab]

I've been reading up on running your vehicle on alt ernati ve fuels and I think that's the way forward.
Why pay £1.40+ per litre when, maybe, other options would work? I'm going to try some stuff, and report surre ptiti ously.

 

[Dellmassive]

.

VCDS shows some interesting data that the ECU uses to calculate the ReGen requirements.


https://www.t6forum.com/attachments/20190314_145240-jpg.39010/

.

 

[mmi]

.

VCDS shows some interesting data that the ECU uses to calculate the ReGen requirements.


https://www.t6forum.com/attachments/20190314_145240-jpg.39010/

.

Actually it's just about to launch the regen. I've observed never getting above 25 grams of "soot mass calculated" in my regular driving.
More about the principles ---> Multiple Engine Management Faults

 

[mmi]

Also OBDeleven is capable of showing live data - however it does not have real data logging capability.


EDIT: Re thread title - my MPG?

 

[Neil Nicholls]

I've been reading up on running your vehicle on alt ernati ve fuels and I think that's the way forward.
Why pay £1.40+ per litre when, maybe, other options would work? I'm going to try some stuff, and report surre ptiti ously.

What are you thinking ?
Veg oil ? Bio ?

 

[Salty Spuds]

We drove down from Barnsley to Newhaven yesterday, so I thought I’d conduct a small experiment.

Brimmed the (80litre) tank & reset the trip counter. Set the ACC to 60mph & hit the motorways. M1, M25, M23, A27. Traffic was typical Sunday afternoon stop start.
MFD showed 38mpg & a range of 700miles.
Got to Newhaven & brimmed the tank again, we’d done 244miles & it took 28.43litres
This works out at 39mpg & 690 miles/tank. So the MFD was near as feck is to swearing, bang on.
Van is a 204/DSG/LWB/4mot/camper conversion, weighs in at 2960kg.
I’m happy with that.

 

[Phil_G]

I've done a similar experiment over long runs and can confirm the MFD is spot on.
This weekend was Buckminster, 160 miles at a steady 60-ish all the way, averaged 42mpg on the display and no reason to doubt that as its always proved to be accurate

 

[ChadFagin]

Can see it's been a while since this thread was last woken but having just taken my T6 on it's first lengthy run I was watching the figures. Just driven from Peterborough to Sheffield & back, was on 37mpg average before I left & after roughly 280 mile round trip she's showing an average of 40.9mpg. Never been Sheffield before but as I hit the M18 the Ad Blue warning bells & whistles started shouting / flashing drowning out the SatNav & making me panic, thankfully got 650 mile range left so I'll put some in tomorrow before the start fail comes in to play.