V90 D4 MPG Improvement

[anotherv60]

Hi All,

Just wanted to share this as it is rather amazing improvement based simply upon the outside temperature effect, or so I'm told! I've had my V90 now for almost 5 months - still love it! But I have struggled to get the fuel consumption figure above 42 mpg through the winter time! But today same trip commuting with outside temperature reaching 18 C, I managed to record a not too shabby 54 mpg! That is an absolute massive change for the same trip! Remember its a bank holiday so the traffic was actually worse than normal!

A 28% improvement in fuel consumption!

Amazed!

[Quacker]

The increase in traffic and probable slower progress surely had more to do with it than air temperature.
My Honda consistently does between 42 and 44 mpg on a long journey, Summer and Winter. Except once when I travelled from near Felixtow up the M6 and over to Shrewsbury and across to Aberystwyth in very heavy holiday traffic. This kept speed on the motorways down to no more than 50mph for long stretches and seldom over 60, more often down to 30 and 40. Was quite tiring but it did yield 50mpg, a figure I've not got within 5mpg of in three years since.

[MOzS90]

I am pretty OCD about economy and lots of things make a difference other than the obvious heavy feet and traffic jams.

It is true that colder temperatures affect diesel and you’ll always get worse numbers in the winter months. It’s amazing just how much difference wind makes to (I live in N Wales therefore an expert on head and tail winds!!!) - a decent tailwind can be up to 5mpgs better than a headwind (just go cycling in a strong wind and see what i mean).

I have a very friendly economy commute of 42 miles of dual carraigeway and managed 70.6mpgs (according to the car so not that accurate) the other day with about a 20kt tailwind and 10 degs outside air temp. Similar conditions going the other way (about 2 degs cooler) was calculated at about 63mpgs.

Increasing speed above 60-65mph has a huge impact on economy too.

[Haldex]

With outside temp going up my foot becomes heavier and my mpg usually drops comes springtime..

[nu11eaf]

Cold air is more dense which allows more air/fuel into engine and power, combine this with the use of heated seats, heated front and rear screens and mirrors in winter and more use of main lights and economy will be effected.
It takes a lot of energy to turn an alternator when providing a lot of electrical power.

[anotherv60]

Economy was up again today - 48mpg but light traffic. I read in the owner manual that the official fuel economy ratings were obtained in the comfort setting - does anyone know how much of an impact running in eco- or dynamic- would have relative to the standard setting?

[pdw1]

Hi,

I'm four months into a very enjoyable ownership of a V90 D4 Momentum. But the thing is my average mpg is in the mid-high 30s. I appreciate that I live in the countryside (i.e. slow, tractor-ridden windy roads), but I had hoped for a bit better, e.g. low 40s!!

Any suggestions as to what I might be doing wrong/might do better?

Thanks!

[WhatNext?]

I have disabled lane keeping assist and think the mileage has improved (although it was already pretty good with 33 mpg on my T5 XC60 compared to others)

[sammyblackbaron]

Originally Posted by pdw1

Hi,

I'm four months into a very enjoyable ownership of a V90 D4 Momentum. But the thing is my average mpg is in the mid-high 30s. I appreciate that I live in the countryside (i.e. slow, tractor-ridden windy roads), but I had hoped for a bit better, e.g. low 40s!!

Any suggestions as to what I might be doing wrong/might do better?

Thanks!

I'm 12 months in and averaging around 39mpg. Mostly higher speed dual carriageways - still nothing like the 60+ mpg that some other V90 owners on here enjoy.

[taylora]

Drove from Glasgow to Southampton last week mostly using Pilot Assist and managed 51MPG according to the computer and in reality was closer to 46MPG measured against a fill up.

The return journey was 56MPG computer and 52 measured. Pretty good considering we were doing between 75 and 80 most of the way.

My regular weekly driving I rarely see the MPG on the computer drop below 44 - that's 50% town and 50% dual carriageway/motorway. I'm really impressed with the economy on this car.

I have AC on all the time, use PA whenever it makes sense and have the tyres on ECO pressures at 38PSI.

Oh and I never use ECO mode.