Hey there-I have just purchased a 2016 Octavia VRS and was recommended to this forum by a brother in Ireland who owned a 2002 VRS for several years and used this site. I live in NZ and am already looking for advice on fuel RON type as I put 91 into car, and recommends 95! 

Hi Lenny! 👋

If the car wants 95, try and give it 95.

 

Yes it even says it on inside of petrol flap. Going fine now on 95!

Do NZ octane ratings use the US or UK system?

 

UK system is the average of MON and RON ratings but US ratings are just MON - so 91 octane US = 95 octane UK, and 93 octane US = 98 octane UK.

Checking around it seems NZ uses the RON system so 95 is 95 I guess. Do you know if Mk3 Octavia can use E98 with 10% Bioethanol?

1 hour ago, Lenny72 said:

Do you know if Mk3 Octavia can use E98 with 10% Bioethanol?

In the UK 95 is now up to 10% ethanol and 98 is up to 5% ethanol, I don't know for sure but I can't see why 98 with up to 10% ethanol would be a problem?

2 hours ago, Lenny72 said:

Checking around it seems NZ uses the RON system so 95 is 95 I guess. Do you know if Mk3 Octavia can use E98 with 10% Bioethanol?

Sorry to be pedantic, but E98 would be 98% ethanol, that's what the E means. So we have 95RON E10 (95 octane and 10% ethanol) and 97RON E5 and so on.

 

But to address the spirit of your question, I don't know. But I don't see why not.

 

Your question is one of those questions that prompts a few other questions.

1) If adding ethanol to petrol for cars really is a good thing, as decreed by the great and the good, why doesn't what we call "Super Unleaded" (97-101 RON octane in the UK) have 10% ethanol? Why limit it to 5%?

2) What percentage of ethanol in petrol can Skoda Octavias handle without issue? (I assume the more recent the Octavia, the more ethanol it can handle.)

3) Are there plans to increase the percentage of ethanol in our fuels in Europe. The US and some parts of Europe (and the rest of the world) already have high-ethanol fuels available. https://en.wikipedia.org/wiki/Common_ethanol_fuel_mixtures

(Incidentally, there seems to be a price advantage to high-ethanol fuels for the consumer. Does this reflect the cost of the product, or is this pricing a political nudge in the "right" direction? I'm old enough to remember when diesel was cheaper than petrol, before it was determined that diesel is a "dirty" fuel.)

 

 

 

Edited 2 March, 20233 yr by EnterName

Hey mate - yes is an interesting question going forward for the ICE engined cars. Ethanol mix ratios (from a bio source i am guessing) and the future introduction of synthetic fuels I expect in the next few years. I have not run my Octavia on 'mix fuel' yet but imagine that it can handle it.