1.6 TDI/DSG, A total of 35 miles this morning in 4 (nominally equal) legs.

Car nicely run in with 70,000 miles on.

57mpg in 0.5 deg C.

Going canny cos of the ice in rural places, but 60 odd on the salted main roads, and through the town twice included in the 35 miles.

all on a cold engine.

M

Anyone noticed that the up change arrows on the dash respond to how heavy your right foot is? If i'm being gentle, it will advise that I change up earlier than if i'm being more vigorous (i'm generally a slow-average accellerator now) it doesn't suggest an upchange until later or at all.

 

On what grounds do people suggest "giving it some welly"? That sounds like pub science to me.Surely just treating it carefully and not over-revving or under-revving would be best for the engine life span/performance?

 

I upchange around 2000rpm, unless the dashboard tells me otherwise. When cold I have to stay in 3rd up to about 35 mph but can put it in 4th at 30mph once the engine is warm (according to the arrows on the dashboard) and 4th gear up until 40mph then 5th gear for the rest up to 70 mph.

 

I downchange from 5th to 4th at 40mph (decelerating) and 4th to 3rd at 30mph (again, when decelerating)

 

I rarely go over 2,200 rpm unless I feel like having a bit of fun/worrying another driver who doesn't realise the great mid-range punch this engine has.

 

I find that the less I ask of the engine, the more it surprises me (though this is largely based on feedback/how I feel rather than any quantifiable data)

 

On my commute (1/4 mile town, 10 miles of a-roads with half a dozen roundabouts and a toll booth, 20 miles of dual carriageway (horrible concrete surface for 7 or 8 of those miles - urgh!) then a mile and a bit of town again. I average 55-65 mpg (ranging from careful to really careful) which is a bit disappointing as I'd expected better from the official figures (that's a thread that has been done to death I suppose) but with fuel as it is, rough maths suggests I'm running it at around 8-9pence per mile (before tax, insurance, depreciation, wear and tear etc) which I'm reasonably happy with.

" Mate suggested today to drive using these guidelines : 2nd till 20mph, use 3rd right upto 40mph, 4th up to 55mph, then 5th - sound way off to you ? "

 

This is about right and totally ignore the change indication....

 

The key point is the engine needs to be doing at least ~ 1700 rpm to get a decent boost from the turbo which effectively increases compression and hence efficiency.

Hence once rolling don't change up until the revs in the next gear will be ~ 1700rpm.

 

Way back on this forum someone posted after doing comparisons on a regular cross-country run rarely exceeding 50mph. By never using 5th they achieved better mpg.

 

Like you I came from a 1.9PD although turbo version in an Audi A4.

 

Yes the CR is quieter and smoother at tickover but overall a disappointment. In a smaller lighter car I was expecting a noticeable increase in overall mpg but at best the average is around the same and can easily be less particularly on shorter and slow speed runs. Any gains in engine efficiency seem at best to be offset by the DPF and CAT restricting the exhaust gas flow plus the operation of the DPF system.

Edited 22 January, 201511 yr by delta925

I must admit I wasn't impressed with the MPG of the Ibiza we had for 7 weeks.

 

It was a much smaller and lighter car with a manual gearbox so I was expecting it to be hugely better on fuel compared to our Octavia 1.9 DSG.

 

We did a couple of motorway runs at 70mph with the cruise control set. Bear in mind that the dash readout is always optimistic it was showing just shy of 50mpg. A similar trip in the Octavia would see a real (brim to brim calculation) of just over 54mpg.

 

Town MPG was about the same and overall.

 

Phil

My theory is this

All vag engines nowadays are built to much tighter tolerances, for emissions and to obtain low oil consumption to last out variable service intervals (vrs excluded of course).

They come out the factory very tight, filled with 504/507 full synthetic high shear tolerant (pd comatible) oil, i.e. ep additives.

A lot of fabia owners (old guys) drive them extremely carefully during the first 5k+ miles, rarely put them under load or stress. They sometimes even change the oil way early, big mistake imo.

Result is they run in with tight tolerances baked in for a long time if not life.

Just a theory, perhaps estateman could comment?

Edited 23 January, 201511 yr by xman

Hi again and thanks for the continuing replies :-)

 

Seams to have a bit of an improvement with better geering selections so will continue and see if I can get some real improvement.

 

On a side note - anyone know if these type of engines prefer a particular fuel, you know, Shell or other etc?

Savaphil said -

"On what grounds do people suggest "giving it some welly"? That sounds like pub science to me. Surely just treating it carefully and not over-revving or under-revving would be best for the engine life span/performance?"

 

Not 'pub science' savaphil -

but 40 years plus experience in the motor workshop on the spanners. The luddite approach is no longer valid on todays engines, and by 'underusing' what the engine is able to produce will be to your detriment. You completely delude yourself by thinking that by treating your car with kid gloves, this will extend its life - whereas in reality the opposite can apply.

Ask yourself one starting question - if the manufacturer builds an engine capable of 5000 rpm +, should he make a special one for you that only does 3000 rpm?

I'm really am not trying to score points here, but if you wish to drive round like granny, then be prepared at some later date to pay the consequences.

Driving around without reaching true operating temperature - result oil deterioration with all its implecations.

Glazed bores due to slow piston speed, and the piston/rings not fully expanding

Incomplete combustion - carbon build up in the gas flow areas etc

Fuel supply components not working to a upper capability, also has ramifications - honestly the list is really endless.

Frankly the days of a one owner, vicars daughter, never raced or rallied, used to collect the post at the end of the garden -  low mileage car are thankfully past.

Please accept this 'rebuff' in the spirit it was intended - more importantly, go out and give your motor a good run (with some welly) and see how it performs

I went from a 20tdi PD to a 1.6 CR TD and i also felt cheated on the mpg which claims more efficient on the newer one, but after reading all comments seems best to rev it through a bit more instead of trying to keep the rpm needle below 2500! I have a formulated sheet for my mpg and my display tells me 51.2 on the total mpg but my sheet tells me its actually giving me 52.2 which is a refreshing change!

 

...on a slightly different note, does anyone know if its normal for them to not rev above 2500rpm when standing still no matter how far you plunge the throttle?

Edited 4 February, 201511 yr by Karlosfandango1973

I went from a 20tdi PD to a 1.6 CR TD and i also felt cheated on the mpg which claims more efficient on the newer one, but after reading all comments seems best to rev it through a bit more instead of trying to keep the rpm needle below 2500! I have a formulated sheet for my mpg and my display tells me 51.2 on the total mpg but my sheet tells me its actually giving me 52.2 which is a refreshing change!

 

...on a slightly different note, does anyone know if its normal for them to not rev above 2500rpm when standing still no matter how far you plunge the throttle?

Yep, its a rev limiter/safety feature .......... unless you've had a remap then its removed, and you also get better mpg due to the additional torque

Its a skoda.

It stops you from redlining in a carpark

But then, you're supposed to be much more sensible than that anyway

I keep meaning to see if my htp has a limiter when stopped.

Keep forgetting though. Im too sensible.

I keep meaning to see if my htp has a limiter when stopped.

Keep forgetting though. Im too sensible.

Iirc it doesn't or at least the newer foxes and polos dont

Karlosfandango1973

 

I did have a CR90 TDI from 2011 to 2013, and YES and I can confirm that there is indeed a rev limitation set at 2500 max. This rev limitation applies when the car is stationary. - so, Quite Normal is the answer to your inquiry.

Edited 4 February, 201511 yr by 2ndskoda

Thanks guys, figured as much but wanted to check, think i may look at getting it remapped as could do with a bit more torque as coming from the 2.0 has smarted a little bit, and extra mpg.....bonus!

Use vpower nitro + and do not put it into 5 th gear until at least 48mph, you will labour the engine and use much more fuel and try cruise control at 58-60mph on the motorway if you go above 65mph she will again start swallowing fuel like the film deep throat , we have 2 crtdi 1.6 engines here and we regularly get 65-70 mpg, however the Fabia is far betterthan the mk6 golf with the same engine ? , the Fabia monte get oil change every 5,000 miles