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Eco mode question

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I have a three year old Karoq.

Next week I have to do a week long round trip from Devon to Edinburgh.

If I select Eco  Mode all the way will it really make much difference with fuel consumption?

 

 

No because you will be driving all types of roads and speed limits and going with the traffic flow.

Select your driving style to economic driving and that will make a difference. 

 

Set the tyre pressures and reset the TPMS.    Enjoy the trip. 

Eco mode basically gives you some coasting on downhill sections, but anyone who looks at the live fuel consumption will see silly results like 200-300mpg or even dashes (more than 300mpg) on these sections, so not using much fuel anyway. I think Eco mode also limits the a/c.

 

If you are keeping up with motorway traffic, will make little difference to using normal mode.  Last week my local fuel station was only 6p more per litre for 97ron premium E5 over unleaded, you will get more mileage saving using that instead of E10 normal unleaded and eco mode. (anything less than about 12p /litre premium on open road, or nearer 16p in traffic and premium E5 seems better option as it gives better mpg as it pulls better whilst going up hills or accelerating.

 

 

Edited by SurreyJohn

8 minutes ago, SurreyJohn said:

anyone who looks at the live fuel consumption will see silly results like 200-300mpg or even dashes (more than 300mpg) on these sections

True this; I can regularly see these sorts of figures on an old Octy 1.

E5 or E10 filled up in Scotland will be a false economy for @Csloggas it will just need drained from the TDI Karoq.

AA / RAC or Greenflag recovering the car south will save fuel in the Karoq. 

  • Author

Thanks for the answers.

Looks like I will leave it in normal mode.

 

57 minutes ago, roottoot said:

E5 or E10 filled up in Scotland will be a false economy for @Csloggas it will just need drained from the TDI Karoq.

AA / RAC or Greenflag recovering the car south will save fuel in the Karoq. 


Should have looked at the signature, and seen it was a diesel

 

Eco / Coasting can work in the right locations / driving conditions and very much so with a diesel.

 

Maybe an idea to try driving in different modes on different type trips and see how things go.

 

For my part driving from Perth to Glasgow used more fuel than from Glasgow to Perth on the same route & including the 23 mile stretch of average speed cameras between Stirling & Perth.

Reason being there is more longer downhill stretches heading back north. 

 Doing the same route a few times weekly for years and you get to know just when your toe can be off the accelerator and the same speed is maintained. 

I tried Eco mode on my last run down to the coast (160miles) and it only gave me around 2mpg against doing the run in normal mode.

Obviously there are a lot of variables in play to influence the numbers, both runs I did were as similar as possible (Only me in the car, tyre pressures set before leaving, clear run with no traffic).

 

Eco mode in the Octavia sets the DSG to coast, changes the throttle response, alters the A/C settings, and stops the adaptive headlights from functioning.

 

As per above, I think you would get better results by changing your driving style than changing the mode.

 

 

As well as the changes as stated above Eco also 'softens' the acceleration. 

 

My driving style is gentle and I quite like Eco mode.

 

The thing to do is forget mpg and try the various modes and use the one that suits your driving style.

 

tom

I find in gen driving Eco mode use more fuel, maybe because I over compensate for the sluggish response, on back roads I find Sport gives better economy ax I find the throttle modulation more sensitive, in sport I can hold 2  cylinder mode easier and for longer than in normal mode, but for general driving on mixed roads I stick with normal.

If you need sport it is instantly available by pulling back on the shifter. Then another pull a few seconds later once acceleration required is finished puts it back into eco mode. If I am driving say 170 miles to see our daughter why have it in sport mode for 4 hours driving on straight slow roads with little or no places to overtake? I may be in sport road for 10 mins at most!

10 hours ago, kenfowler3966 said:

If you need sport it is instantly available by pulling back on the shifter. Then another pull a few seconds later once acceleration required is finished puts it back into eco mode. If I am driving say 170 miles to see our daughter why have it in sport mode for 4 hours driving on straight slow roads with little or no places to overtake? I may be in sport road for 10 mins at most!

That doesn't alter the throttle response it just hangs onto gears longer 

The OP has a 1.6 TDI with a 7 speed Twin Clutch DSG so comparing TSI's and TSI ACT's is apples and pairs.

 

There is S to hold the gears, maybe use kickdown or not, but this will be feeling a bit different than with a 1.0, 1.5 or 2.0 TSI. 

 

The 1.6TDI driven just in D might be more economic than any of those on the Devon / Edinburgh & back trip even with the price of diesel a bit higher.

 

The OP will be able to tell us how economic heading north and again back south. 

Edited by roottoot

I haven't tried the eco mode, but I have had a look at the parameters in the 'custom' mode. I use the sport mode, but to be honest, I can't feel any difference, apart from perhaps slightly heavier steeing. As my car is a manual there will be no coast function in Eco, and no change when accelerating apart from the gear change indicator. 

 

It is all very different to an Alfa Mito diesel I had as a hire car in Italy. I couldn't figure out how poor the performane was until I discovered the spot function, which transformed performance. On the other hand, its Eco mode made it perform like a slug. 

Edited by Routemaster1461

@Routemaster1461Was that a 1.3 Diesel and manual or auto and was that using the D, N. A button if it had one and on 'A'. ?

Before comparing fuel consumption doing return journeys, please check wind direction - this will affect fuel consumption far more than any coasting in ECO mode (and maybe the altitude of the start and end of the trip). Especially in a vehicle with the aerodynamics of a Karoq. 

 

My understanding is that in ECO mode, the engine ticks over. In Drive mode the fuel is shut off when running downhill (with no throttle, in gear). Is this true? If so, ECO would make fuel consumption worse.

No modern cars use any fuel at all when going downhill, assuming that the hill is steep enough for gravity to overcome the car's rolling resistance. From what I can make out, eco mode allows the DGS gearbox to go into neutral (or to release both clutches) to reduce rolling resistance. There would be no effect to a manual. You cold replicate this by putting a manual into neutral or dipping the clutch, but that would be illegal.

13 minutes ago, Routemaster1461 said:

No modern cars use any fuel at all when going downhill, assuming that the hill is steep enough for gravity to overcome the car's rolling resistance. From what I can make out, eco mode allows the DGS gearbox to go into neutral (or to release both clutches) to reduce rolling resistance. There would be no effect to a manual. You cold replicate this by putting a manual into neutral or dipping the clutch, but that would be illegal.

 

I agree - ECO mode is the same as dipping a clutch, so fuel is used to tick over. But if the clutch remains engaged, is there an independent fuel shut off? Using no fuel?

Can't comment on Eco mode,  but normally there is no fuel injected on overrun, in gear (clutch engaged), and RPM > ~ 1200 RPM and engine temperature above something like 30C. All my (petrol) cars have operated like this since 2000, my first MPI engine.

When you touch the brake in eco mode dsg clutch re-engages and gives braking, changing to lower gear if required.

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