Took the octavia on a steady run over the weekend. Covered about 300 miles in two trips of steady driving on mostly motorways at 70 mph.

Brim to brim got 51.1 mpg. I'm a little disappointed.

What is everyone else getting from these motors?

(I have searched for about 20 mins and can't find a relevant thread)

Cheers people

Hi

Iam getting a constant 58+mpg.Rises to 64mpg to and from work which is mostly long country roads.

This week i,m on a course so all is motorway driving and i haven,t been hanging around on the M27 and was doing 50 to 53 mpg.

Hmmm. A bit disappointing then!

I'll see how it does.

In the mean time, has anyone any suggestions. I think I'll run a bottle of fuel. Treatment through it and have a look at the EGR.

I would expect you to have got 55 mpg plus at 70 mph this weekend, quite what your average was like will depend on the other parts of your journey though. Wind and rain can significantly affect mpg though, so if when and where you were driving were affected this could explain what you got.

 

Here's what I get for the same engine, but bear in mind that my highest mpg runs are at 60 mph rather than 70 mph, and that I do work at driving economically:

 

 

I doubt the fuel treatment will make a fat lot of difference to be honest, but the EGR valve could be worth a look. I assume the car has been serviced as required?

 

This won't make a big difference but if you haven't checked your tyre pressures for a while they are likely to be low now that it has got colder.

Hello mate,

Ive the same engine as you and since February this year, I've recorded every brim to brim fill up on an app called Road Trip. As you can see from the attached, I'm not getting much more than what you are.

My journey to work and back is just short of 100 miles per day, mostly on motorways at 70 mph.

I know if I nurse it and drive at 60 mph I can achieve late 60's mpg. But at this speed, I find I get in the way of trucks and generally become a pain in the backside for everyone else on the motorway.

I'm not sure if different brands of fuels make a difference as I've used all sorts during this period.

I had the car serviced today and had all of the filters (oil, air, fuel & cabin) changed along with the oil. I'll see if this makes any difference but if I'm honest, I'm not expecting it to.

I'm a fussy buggah when it comes to my car. I keep it well maintained and check the tyre pressures every week after I've washed it. I'm an advanced driver too, so tend to anticipate what's happening ahead and try to drive smoothly at all times.

Hope this helps.

FP

Edited 11 September, 201312 yr by flying pig

The missus gets about 50MPG, and I get around 56MPG on our 55reg 1.9 classic.

When I drove on the Continent earlier this year (2000 miles) , it was 56MPG with a lot of motorway work at around 70 - 80MPH.

 

Everyone drives differently.

I don't know your driving style or the traffic/driving conditions.  Even a small amount of "extra" can make a substantial difference.  "Steady" is a very subjective assessment.  If I reset my trip computer at the end of my road after a cold start, it makes a substantial difference to consumption for longer than you'd think. 

If you were using cruise control, and having to switch in and out quite often that may be a contributory factor.  On mine, restore gives far more acceleration than I would normally apply.  Lots of extra juice used unnecessarily and uncomfortably for passengers.  I manually increase speed back to cruising before pressing restore.

Low 50's at 70ish, not brilliant, but not too bad I would have thought.  Not being a fuel fetishist, I only bother to read off the computer. 

Keeping below 60, I can fairly easily get upper 60's.  But that is on the undulating roads of Fenland.  The horizon may be flat, but the roads certainly aren't.

Abroad on Autobahn, with cruise set at 80+, I'm happy to get low to mid (if I work at it) 40's.  And it takes quite a bit extra effort to get even a couple mpg's improvement.

Normal mixed driving gets me a consistent 50mpg.  When I try really hard to nurse it along, it has almost reached 60mpg.

Something not right there. We get more than that normally in our DSG.

 

Phil

Brim to brim consumption is a lot less than what the onboard computer would have us believe. Two weeks ago on a trip from Edinburgh to Windermere my computer was showing an average of 78mpg for the journey, 70mph max on the motorway and 40-50 on main roads. On returning north I could only achieve 64mpg on the computer having driven in the same style.  On filling the tank I reckon that I had got around 58mpg for the round trip. City driving by the way seems to be 46-51mpg on the computer.

Brim to brim consumption is a lot less than what the onboard computer would have us believe. Two weeks ago on a trip from Edinburgh to Windermere my computer was showing an average of 78mpg for the journey, 70mph max on the motorway and 40-50 on main roads. On returning north I could only achieve 64mpg on the computer having driven in the same style.  On filling the tank I reckon that I had got around 58mpg for the round trip. City driving by the way seems to be 46-51mpg on the computer.

Sounds like your MFD behaves similarly to mine:

 

http://www.briskoda.net/forums/topic/287769-indicated-mpg-25-high-sensor-fault-or-just-calibration-setting/

I know if I nurse it and drive at 60 mph I can achieve late 60's mpg. But at this speed, I find I get in the way of trucks and generally become a pain in the backside for everyone else on the motorway.

HGVs are physically limited to 56 mph (90 kph). If I drive on a motorway at what my car indicates as 60 mph this is about 57-58 true mph (going by my Sat Nav), and is indeed faster than all large lorries. I won't drive slower than 60 mph on motorways precisely so that I'm not causing lorries to overtake. When I overtake a lorry I speed up to do so quickly rather than taking ages to overtake and clogging up the middle lane.

Mine is in my signature, 51.5mpg over the last 30,000 miles which I think is pretty good considering what traffic can be like on my commute

 

As everyone has said, driving styles, weight, wind. There are too many factors. 

Thanks a lot for the info guys. The car isnew to me and has a reasonable service history.

Thinking back accurately I did about 20 mins of town driving, had cruise control on most of the time and spent a bit of time at 80 patatoes so I think 51 is probably about right.

I'll see what I get on the next run but I'll give the egr a clean when I get time.

53.5 mpg average over four years and 34000 miles. Very few motorways in Ireland so it's all 60 mph driving.

It did get better after running in and i do note a rise in consumption when I travel up to Dublin on the motorway.

Thinking back accurately I did about 20 mins of town driving, had cruise control on most of the time and spent a bit of time at 80 patatoes so I think 51 is probably about right.

 

Yes, I agree, that sounds perfectly normal.

 

For motorway cruising there is little you can do to make significant improvements in mpg other than drive slower. You'll see something like a 10% improvement in mpg between 80 mph and 70 mph, whilst things like tyre pressures and weight saving make a tiny difference in comparison.

 

For more stop start driving there is much more you can do in terms of modifying driving style, in terms of anticipating what is going to happen to avoid unnecessary acceleration and braking, slowing down in gear, and how you accelerate. And note that accelerating as slowly as possible is NOT the most efficient way to go, fairly hard acceleration between about 1600 rpm and 2200 rpm is (since this operates the engine at maximum efficiency, i.e. minimum BSFC). Slow acceleration 'works' as it helps people avoid unnecessary acceleration, but if you can learn to do this by reading the road ahead then you can save fuel without your right foot wondering if you've forgotten what the accelerator is for .

Thanks for the tips.

I don't think I'm too bad at driving for economy. I once got 470 miles out of a tank in my mk1 octavia VRS. I think that was about 41/42 mpg.

I'll get the egr done anyway and see how i go.

The Honda CB 500 is nearly touching 60 mpg with 90% urban driving as my daily drive so I can't complain.

I think I have an unhealthy obsession with mpg. I don't really care about saving money (as I expect it won't save me very much). It's more of a game to keep my entertained!!

Just taken aloof at the EGR. The Octavia has nearly reached 70k but it looked clean enough that I'm not going to bother taking it off to clean. I Was pleasantly surprised!