Just checking that this is Skoda's 'Prescribed' fuel for this model.

 

Owners Handbook does not help as it says what you can use if your prescribed fuel is 91/95/98 but does not detail actual prescribed fuels. 

 

Asking because 98 hard to get here regardless of price.

 

Also is it same for 140 PS version?

 

Thanks

Edited 9 July, 20169 yr by Octy0GG

95RON will be absolutely fine. There may be a sticker on the inside of the fuel flap to confirm, but all Skoda patrols will run fine on standard premium.

Tried a few consecutive tanks of 98 RON on my 140 bhp tsi and registered no difference in performance or economy so just running happily on 95 RON.

all cars in the UK have to run on 95 ron by law - you might find some engines produce more power on the higher octaine fuel because the ECU can adjust.  used to see it on the fuel caps on the more powerful 1.8t vag cars.  my old punto GT ran better on 97+ petrol but it was a ancient turbo charged engine

Your UK Super Unleaded is 97 ron Minimum from BP, Esso, Sainsburrys, Gulf etc 

& then Tesco Momentum 99 and Shell V-Power Nitro + is 99 ron Minimum.

 

So VW might say 98 Super, but you are going to buy 97 or 99 ron and at times the stuff coming from the pump will exceed that.

Some cars will love the 97 or the 99 ron, and as you can not buy 98 ron in the UK they are fine in a 140ps 1.4 TSI.

http://volkswagen.co.uk/need-help/owners/Fuel

 

a 1.4TSI 180-185 ps Twincharger really is happier with the 99 ron and the 97 ron is a better choice than running 95 ron Unleaded that all EU Type Approved Petrol engines must be able to run on.

Edited 9 July, 20169 yr by GoneOffSKi

@Octy0GG

On the fuel flap is "min.95 RON/ROZ", so you can use 95 without problems, if 98 is hard to get in your region. In owners manual for "min.95 RON" is a note: 

"On vehicles using prescribed unleaded petrol of min. 95 RON, the use of petrol with a higher octane number than 95 RON can increase the power and reduce fuel consumption."

But that depends on driving style. I use only 98 RON in summer time, for cold weather mainly 95 and 2 - 3 tanks of 98. 

Edited 9 July, 20169 yr by Alunakis

I have tried "super" without being impressed, and I use 95 either from Tesco or Sainsbury, and to be honest I find more difference between those two unleadeds than between 95 and 97.

(Prefer Tesco!!)

Agree with some of the comments above - there's no real difference. For what it's worth, I believe that there is some variation in the way the user manuals are written. There is a difference between something that can be paraphrased as "should use 97/98, but can use 95 if needed although you will get less performance" and something that can be paraphrased as "Designed for 95, but if you stick 97/98 in you might just feel a difference". The 1.4 TSi is in the latter category.

 

I ran mine exclusively on 'super' for 3,000 miles (predominantly shell and occasionally BP), then switched to the 'regular' and noticed no difference whatsoever. Any difference in fuel economy is unmeasurable as it is swamped by variations in route, traffic levels and my mood (the latter being most critical!), certainly the price increase cannot be justified by fuel economy improvement.

 

I have read that there are additional cleaning agents in the 'super' and that it might be good for the injectors, so I give it the odd tank of the good stuff now and then, but predominantly I'm using the 95 and it's fine.

The only other thing I would add, according to the experts, you have to go through several full tanks of the "better" fuel before the changeover is noticeable.

Something to do with the engine electronics re-educating themselves!

 

Still, as I am very happy on 95, I can't be bothered!

Edited 11 July, 20169 yr by ednmra

Yes Geek42, you're right, owner manuals are different in VAG family . Note at "min.95 RON", as the one I posted above, don't appear in Audi, VW and Seat manuals. Why, I don't know. Maybe marketing, different taxes...But I think the most important thing is the quality, 95 RON must be 95RON. 

Petrol/Air mixture with an Higher Octane Ie 98 or 99 RON benefits the engine by being able to be compressed to a higher pressure before ignition, leading to less pinking and therefore damage and a more efficient cycle.

So if you are planning on keeping the car and care about your engine buy super unleaded :sun:

Edited 12 July, 20169 yr by Suuntobob

Petrol/Air mixture with an Higher Octane Ie 98 or 99 RON benefits the engine by being able to be compressed to a higher pressure before ignition, leading to less pinking and therefore damage and a more efficient cycle.

So if you are planning on keeping the car and care about your engine buy super unleaded :sun:

 

The technical aspects of this answer seem correct, but are you not ignoring the effect of modern electronically controlled ignition? There shouldn't be any pinking as the electronics would detect any tiny amount that occurred and instantly modify the timing. This is the reason that any performance / economy improvement would need several tanks of super to obtain, as the computer goes instantly conservative on the first hint of pinking, but is quite cautious about going back the other way to make use of any octane improvement.

 

There are, of course, extra additives in with the higher RON rating, the benefit of which may or may not be significant but I'm not qualified to assess that.

Petrol/Air mixture with an Higher Octane Ie 98 or 99 RON benefits the engine by being able to be compressed to a higher pressure before ignition, leading to less pinking and therefore damage and a more efficient cycle.

So if you are planning on keeping the car and care about your engine buy super unleaded :sun:

 

This is only true if the ECU has the functionality to be able to detect the fuel used & retard the timing to ignite the fuel early.

Higher RON fuel is wasted unless the ECU can adapt the timing to make the most efficient use of the extra energy in the fuel.

 

Typically this kind of functionality was only used on higher performance engines.

You wouldnt have it on a 1L micra or 1.4l Corsa.

 

However, with the modern smaller TSi engines, I don't know whether these functionalities are now standard.

I have only one question and i didn't find the answer. Is my engine (CHPA) REALLY designed for 95 RON? The output data are obtained with 95 RON?

I agree with Gabbo that the additional RON rating only provides more power or better economy if the engine is designed to utilise it.

 

In Australia our basic crud fuel is 91 Octane which has about the same quality as the basic crud fuel in the US so many of the Japanese and Korean cars with engines designed for the larger US market will happily run on our low RON fuel. As this fuel is 11 cents a litre cheaper than 95 RON it is a selling point.

Examples are:

The Mazda 'SkyActive' range of normally aspirated petrol engines run exceptionally high compression ratios but models sold here run 13:1 compression ratios and 91 RON compared to the Euro market 14:1 and 95 RON. Mazda make no claims about any benefits of running higher octane fuel in the lower compression engine.

 

The Hyundai range including their newer turbo petrol engines specify the lower 91 RON fuel and also make no benefit claims for higher octane fuels.

 

Of course there are exceptions and a notable one is the new Mazda 2.5 turbo engine in their newly released CX9. According to Mazda figures with 91 RON you get 170kW and with 98 RON it can produce 186kW.

 

It seems to me that the VW group are fairly specific about the fuels to be used in their cars, nominating a preferred rated fuel and sometimes a lower rated fuel as a fallback option.

It is very unlikely that if VW/Skoda recommend 95 RON for my 1.4tsi that putting a higher rated fuel in will magically improve economy/power/smoothness.

I mean, gosh! How did their engineers and marketing people miss that one?

 

I am more than happy to be proven wrong if anyone can quote any VW issued statements, or independent laboratory tests to enlighten me further.

Edited 12 July, 20169 yr by Gerrycan

I have only one question and i didn't find the answer. Is my engine (CHPA) REALLY designed for 95 RON? The output data are obtained with 95 RON?

 

Simple. Look at the recommendation on the inside of the fuel cap. I think you will find a 1.4tsi requires 95 RON and probably the higher performance RS petrol models will recommend 98 RON. That would certainly be the fuel used by VW for their tests, and don't forget that many have found VW power claims to be quite conservative.

The official fuel consumption tests conducted here in Australia for the current 1.4tsi engines were with 95 Octane.

Thanks for your answer Gerrycan. On the fuel flap is "min.95 RON".  I searched in newest UK and Germany brochures and even for RS the fuel is (min.)95 RON.

VW Europe has no statement referring to improving economy/power/smoothness using higher octane, but Skoda has(see owners manual). In owners manual 2016 for VW Golf GTI/R is a note: "If Regular gasoline is recommended for your engine, you may be able to enhance engine performance by using Premium gasoline."

Edited 12 July, 20169 yr by Alunakis

I run 99 Ron fuel

It greatly affects my MPG

It also increases the smiles per mile I get

Nuff said ?

Regards

T

Edited 12 July, 20169 yr by themanwithnoaim

Hello,

Is there any difference between european RON octane and russian RON octane? Today I saw a video about Octavia 3 1.4 TSI 103kw mk2015 and on the fuel flap was written 98(95) RON,  not "min.95 RON".

As some have on other models like a Mk2 Fabia vRS,  prescribed / recommended 98 super (95) min.  For what Ron / Mon is in Russia Google Wikipedia octane rating,  shows fuels by country.

EDIT,

http://en.wikipedia.org/wiki/Octane_rating

Edited 15 February, 20179 yr by Offski