Momentous day today

Yes, let's be honest here, everyone drives at 80 on the motorway in cars

Okay, well maybe not everyone, but y'know what I mean ;)
 
Than when traveling at 90? :p


I very much doubt for example, it's more efficient at 80 than say 60mph...

I doubt the display is lying to me. 80 MPH seems to be the sweet spot. Efficency is a seperate issue from what I originally posted about? Which was that most people drive at speeds higher than 70 MPH. Lane discipline is yet another issue.
 
What car is it?

My 530 for example is far better on fuel at 60 than 80 equally it's better at 40 than 60.....

I'm probably missing your point I guess, it certainly feels far happier cruising @80 but it's supping more for sure.
 
Sounds rather unlikely (laws of physics really). I assume you're not using the instant readout for this?
 
Sounds rather unlikely (laws of physics really). I assume you're not using the instant readout for this?

The instant MPG? Yes, but obviously discounting inclines etc. The average MPG is poor because 80% of our driving is 5 miles each way to the train station. We really should buy an Up or C1 or similar for commuting.
 
The instant MPG? Yes, but obviously discounting inclines etc. The average MPG is poor because 80% of our driving is 5 miles each way to the train station. We really should buy an Up or C1 or similar for commuting.

Using the instant readout I can frequently get anything from 0 to 999mpg from my 44ton HGV! Your misunderstanding how the on board computer calculates fuel consumption.

The average mpg is poor because of yes, your journeys but equally the kind of car it is, the XC90 is many things, frugal isn't one of them.

Especially when travelling @80mph!
 
If a Volvo XC90 uses less fuel cruising at 80MPH than at 70MPH in its highest gear I'll eat every hat I can get my hands on!
 
Fair enough chaps, my mistake then. The computer doesn't allow for per trip consumption figures or I could simply repeat the same route at different speeds.

It's probably got an average mpg setting, you reset this and do your respective trip and so on, not an exact science but it'll be close enough.

As an example, my 530i will return ballpark 18mpg on my run to work by doing this, the journey is about a 12 mile round trip and it barely warms up.

If I take it on a long run and reset the OBC in the same way, it'll return a readout of between 29 and 36mpg depending upon traffic and - crucially - my right foot.

If I don't reset the OBC for weeks, it eventually settles on 22mpg average which is about right for the type of car and the predominantly urban driving that I do.

I would imagine your Volvo wouldn't be much different overall.
 
This usually means it's LHD and the driver is so tired he thinks he's in the "slow" lane as hes over to the right, pass with caution.

Unfortunately not. Both were UK plated vehciles (albeit one was NI).

One was in queueing traffic on the M6 - he was getting frustrated with a car ahead not keeping up with the traffic. The trucker kept swerving from lane to lane trying to get past, and eventually went into lane 3. I honked and flashed, and I got a thumbs up and a wave from the driver. I'd nearly called the police it was that worrying.

The second was in the roadworks on the M6, again a trucker getting annoyed with a middle lane hog.

Both times there were cars as the source of the problem, but it's still not excusable.
 
Both times there were cars as the source of the problem, but it's still not excusable.

As an hgv driver I'd say the source of the problem was poor unprofessional driving by the two supposed professionals!

Trucks can use lane 3 when lane 1 is a filter lane, e.g. where the M6 meets the M5, A38,M42 etc.
 
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