The MPG is really suffering, the car really does not like this hot weather. About 4 - 5 mpg down on the usual I would say.

Anyone else notice this?

I have the 2.0 PD TDi and I'm down by about 10mpg (55 to 45), which includes running the air con.

Im guessing whatever engine u have it will be down in the hot weather as you will either have windows open or the climate control on most of the time.

Steve

Both fuel and air are less dense in hot weather - so you need more of both to provide the same power.

I've tried some air con on / air con off tests over the past few days. Off isn't fun, but it's in the cause of science! According to the display, it makes ~6-8 mpg difference on my 1.9 PD TDI.

I've tried some air con on / air con off tests over the past few days. Off isn't fun, but it's in the cause of science! According to the display, it makes ~6-8 mpg difference on my 1.9 PD TDI.

Yep , same with my PD170 - since turning the ECON on (ie aircon off) , my mpg indicator for the journey ( position 1) has increased the same amount. Position OFF would be too much to put up with in this weather unless all the windows were open...

Yep , same with my PD170 - since turning the ECON on (ie aircon off) , my mpg indicator for the journey ( position 1) has increased the same amount. Position OFF would be too much to put up with in this weather unless all the windows were open...

and then you loose again with all the windows open, due to the increased drag, plus if you are too tight to use your aircon, expect big bills repairing it, as air con systems do not take too kindly to non use.

200 miles today mainly motorway with somoe heavy traffic and air con on all day as it was 32 degrees outside saw me get 40mpg on a PD170, maxidot was reset before i started the trip.

having only got the car yesterday i was dissapointed by my first long journey in it but now i see why!

I expected a drop in the mpg figure with the aircon working overtime, but I still got 50 mpg today (Berkshire to Nottingham and back) from a CR 170.

I don't seem to have an ECON setting with the new dahboard layout - also I can see no way of converting degrees C to degrees F which I'd like to do (if Jesus Christ had intended us to go metric, he'd have had 10 apostles....)

if you've got climate control, look at the knob with 'auto' on it..on the same knob at the bottom, you have 'econ'

You can convert 'c' to 'f' using maxidot

By the way, in this heat, with air con on, my mpg difference has been negligible (about 0.2 mpg lower)

I expected a drop in the mpg figure with the aircon working overtime, but I still got 50 mpg today (Berkshire to Nottingham and back) from a CR 170.

I don't seem to have an ECON setting with the new dahboard layout - also I can see no way of converting degrees C to degrees F which I'd like to do (if Jesus Christ had intended us to go metric, he'd have had 10 apostles....)

Apparently you can also press and hold the AUTO and ECON buttons to swap between °C and °F. http://briskoda.net/octavia-ii/new-octavia-tips-tricks/55750/

That said if God had wanted us to use imperial he would have given us 12 fingers and toes

That said if God had wanted us to use imperial he would have given us 12 fingers and toes

If god wanted us to use metric, he would have made 10/3 a better number! than 3.333333333333333333333333333333333333333

With regards to AC on or off, I find in makes sod all difference, so little in fact that given the other variables in your daily drive (amount of time waiting at t junction, how quickly you accelerated from said junction, did the motorway brake down to 40 mph and then require a sped up etc) that it's nigh on impossible to judge the difference in average mpg.

With regards to hot weather, I've not noticed a difference but appreciate that there will be a drop off in performacen due to the air temperature. Don't think the fuel temperature will make any difference given the pressures it is injected into the cylinders at. Now that pressure increase WILL cause the fuel to heat up!

Steve

No real difference with my CR VRS. 550 miles on a full tank last week going from the North East to Loch Lomond and then down to Preston way. Had the AC on all the way and was giving the car some welly and still no real change on the mpg (49).

However, out in the Volvo XC90 yesterday and only got 27mpg :thumbdwn: Need Skoda to make a decent people carrier in the not too distant future.

and then you loose again with all the windows open, due to the increased drag, plus if you are too tight to use your aircon, expect big bills repairing it, as air con systems do not take too kindly to non use.

Yes you would loose again with all the windows open, hence why I have it on ECON not OFF so the blower is on. I am being tight on fuel otherwise I would have bought a petrol car again. Never had a problem with aircon being left off on any car I have owned, as long as it is run periodically.

Mine seems to be down a bit (PD170), putting it down to never having ECON on and climate set to 19 so it's having to bring inside temp down by 10 degrees compared to outside in constant direct sunlight.

However, out in the Volvo XC90 yesterday and only got 27mpg :thumbdwn: Need Skoda to make a decent people carrier in the not too distant future.

I only had 28 out of my 2.0 PD Leon yesterday, but that was in heavy traffic and 32 degree heat witht he climate on 20 and 19.

yikes

If fuel was sold by the KG and it was kM per kG you wouldn't notice much difference.

As shifty said, it's down to fuel/air density.

The killer is the length of the journey. On my relatively short trip from work the A/C is effectively running a full load all the way home, hence a big dip in economy.

On a long run the effect is so much less, as the A/C runs with a much lower load when things have settled down.

Both fuel and air are less dense in hot weather - so you need more of both to provide the same power.

Re: the fuel being less dense, I assume we are talking about expansion?

This is interesting because although strictly speaking your MPG would be worse, in reality it wouldn't be costing you more because you'd actually have a greater volume of fuel in your tank than you put in (assuming the weather got warmer since you filled up)?

Actually, if that's true, it could be argued that it's better to fill up when it's cold, since fuel is paid for by volume?

Or am I talking sh*te? :confused:

i did a 400 mile round trip and got 51.1 in my CR DSG with ac at 16 degrees on setting 1.

Pretty happy with that.

"Apparently you can also press and hold the AUTO and ECON buttons to swap between °C and °F. http://briskoda.net/octavia-ii/new-o...-tricks/55750/"

Many thanks to you and others who responded. Unfortunately this seems to apply to the old design of dashboard, not the latest version which my car has.

Anyone with the new design discovered how to convert C to F? - or can't it be done? If not, that's yet another piece of unwanted 'progress'.

I'm new to Skoda, and whilst my vRS is excellent, I'm curious about Skoda's seemingly piecemeal approach to facelifting. For example, my car has

- the new CR 170 engine

- the new dashboard, compete with less convenient heating and AC controls

- the old (pre-facelift) front (grille and lamps).

I have got over 55mpg ( well an indicated mpg via maxidot so knock a few off to get a real figure) on my trip to Kent from Manchester and back. However that was bimbling down with the window open, shades on, air con off, Ipod at MAX. Dont think I ever went over 65mph. Far too nice to go caning it :-)

And I now have a very nice "truckers tan".

Anyone with the new design discovered how to convert C to F? - or can't it be done? If not, that's yet another piece of unwanted 'progress'.

I'm new to Skoda, and whilst my vRS is excellent, I'm curious about Skoda's seemingly piecemeal approach to facelifting. For example, my car has

Have you tried going into the maxidot settings ?

52mpg back from Oxfordshire to Sheff sticking to the limit, A/C not working so hard with temp only being mid 20s, not 30.