On 12 July 2017 at 09:11, Robertino said:

I checked this morning using dot matrix display:

Total journey 4.5 miles

Oil temperature showed up first time at 51 degrees, after driving 2.6 miles.

At the end of my journey, oil temperature was 74 degrees, water 90.

 

Exactly the sort of journeys which cry out for a modern petrol engine

 

hence the poor fuel economy 

 

15 hours ago, Robertino said:

Went on long journey today.

 

From Heathrow to Northampton, 60 mph, average consumption by Maxidot 78 mpg 

From Northampton to Heathrow, 65 mph, average consumption by Maxidot 72 mpg 

 

Woow! This is what I was expecting from this car and so happy.

 

Exactly the type of journeys that cry out for a diesel engine

 

hence the excellent and vastly improved fuel economy 

 

WELL DONE ROBERTINO YOU'VE ANSWERED YOUR OWN QUESTIONS

 

 

 

 

Thank you all for help and advice!

Honestly don't know how much difference the 'premium' fuels really make. I stick with regular BP petrol because there's only one petrol station anywhere near where I live, and those nice people from BP have decided that a lack of competiton is an opportunity to fleece us something rotten even for the Heinz 57 regular juice.

 

If the V Power helps keep your engine sweet that's great, but I'm not sure it would make any meaningful difference to economy - you're on the money there anyway.

Did 18 miles on motorway with some slow moving traffic +14 miles in central London. 4 passengers +me +4 suite cases in the boot. Look at this amazing mpg figure:

 

 

This thread needs to be renamed to "Fantastic fuel efficiency"

Edited 17 July, 20178 yr by Robertino

On ‎12‎/‎07‎/‎2017 at 09:31, Robertino said:

I bought it because of promised amazing mpg. EGR can be disconnected - it does enough harm - hot air and all that black stuff going into engine. DPF - I`m not rich enough to replace it at 1.5k, will have to try those special cleaning products.

if you blank off your EGR it will take even longer to warm up.

 

as everyone has said your engine isn't at temp or doing a long enough journey to see actuate MPG's, also maxi dot is not real life mpg either so its probably a little less than it reads out. take your car on a real run like 50+ miles  and then report back.

Also as you said driving like an old lady, if you're driving with low RPM's to help fuel what you're actually doing is killing your DMF and also with it not getting up to temp probably your DPF in the long run.

sell the car and buy a petrol

On 12/07/2017 at 13:41, Robertino said:

I checked this morning using dot matrix display:

Total journey 4.5 miles

Oil temperature showed up first time at 51 degrees, after driving 2.6 miles.

At the end of my journey, oil temperature was 74 degrees, water 90.

 

 

Where do you get the temp figures from?

Maxidot

On the end of right hand side stalk there are two buttons - up and down. Use them to scroll via Maxidot menu to see all data.

What I have also noticed is - if its a really hot day like last weekend, mpg drops considerably. I was driving in a city this weekend in a day time and then at night. What a difference to consumption it made driving at night in a cold weather - way more mpg!

I got 24.3mpg this morning on my 18 mile commute.

 

M42 was ruined so I took some back roads and drove 'enthusiastically' to make up time.

I get average 60+ mpg. But I`m driving like a gran at 60 mph and being very gentle on accelerator. Can`t ask for more mpg, this is as good as it gets.