Believe it or not, I have tried the search function, but I'm obviously just a duck egg.

What fuel have you guys found to be the best for your petrol RS? 

When I had a vRS (2015 220 TSI, running c. 310bhp), mine spent it's life on a diet of Tesco Momentum 99.

 

Gaz

5 minutes ago, Gaz said:

When I had a vRS (2015 220 TSI, running c. 310bhp), mine spent it's life on a diet of Tesco Momentum 99.

 

Gaz

Cheers Gaz. Planning on running on a premium, just unsure which. Can't actually think of a tesco near me. Closest is asda, BP OR Sainsburys 

If you are going E5 so 97 or 99 ron Min then i would be using Tesco Momentum 99, and even Sainsbury Super 97 ron (Min)

 

Asda does not sell E5 Super Unleaded.

Costco does. 

Greenergy part owned by Tesco and that produces Tesco Momentum 99 & some of Esso's fuels for part of the UK import their base fuels with their Partner Royal Dutch Shell.

Personally i would swerve Shell v-power.  They hqve reformulated once again.

You want the octane and enough detergents are in the Long Life Oils. IMO.

 

Not all Super Unleaded E5 is the same around the UK, or even just 97 or 99 octane.

Edited 1 May, 20233 yr by toot

I'm gonna sound absolutely clueless (yet again) but what's the difference in e5 and e10? I know as much as its ethanol content, but what harm/good is it using either? Especially for this engine.

 

I had next to no love for my past few cars, and I rarely drove them tbf, so it got any old fuel thrown in.

Now I've traded the ex missus in and got a car I want, I wonna treat it a little better

EDIT, 

Diesel comes in regular or premium.

 

Petrol is Unleaded or Super Unleaded.

You can buy Super Unleaded 97 or 99 ron that costs no more than Unleaded 95 from the likes of BP, ESSO, Shell, Jet, Gulf, Texaco etc.

They will sell E10 or their E5  & maybe the higher octane is that not more expensive, prices can change with the last delivery to their filling station tanks.

 

..............................

The petrol you have been buying since September 2021 in the UK if 95 Unleaded is E10.   With up to 10% bio. 

Since November last year and every year in the UK E10 or E5 is winter formulation til the end March at the earliest.

 

So to get Up to 5% Bio and that can be 0% you need to buy E5 Super Unleaded & that is 97 or 99 ron (Octane) in the UK. 

Nobody sells 98 ron in the UK and has not for years. 

 

VW Group have ignored that 98 Super stopped being retailed on the UK over a decade ago.

Even when they put stickers on the fuel flap showing,   98 / (95).

http://volkswagen.co.uk/en/need-help/need-help-faqs/fuel.html

 

eg.

Green VW Sirocco R,  Red Fabia mk2 vRS 1.4 Twincharger.

 

Edited 1 May, 20233 yr by toot

Thanks yet again @toot

I use Tesco 99, if none of that and I need it, BP ultimate.

 

Does it make a difference, don't know, but it should, so it's all good with me.

I always used to use bp ultimate ,but starting using their standard e10 when prices went stupid and its not made a blind bit of difference to my vrs tsi so stayed with it 👍

20 hours ago, toot said:

 

What that plate tells you is that 98RON is recommended but if you can't get it then 95RON is OK - check what the plate on your fuel filler flap says.

Edited 2 May, 20233 yr by PetrolDave

This top one for the EU / UK usually these days.

Bottom one for some engines and other world regions.   

 

PS

This 'Super & Super Unleaded / Super Premium', appearing on fuel flaps is really lost in Translation for the UK. 

Unleaded 95 or Super Unleaded 97 or 99 octane min in the UK. 

 

Edited 2 May, 20233 yr by toot

Tesco momentum for me.

 

Used to use v-power on my old car and before the prices went through the ceiling, at some points v-power has been as much as 20p a litre more than momentum round my way. . 

 

This is worth a watch if you have a spare 20mins.

 

https://youtu.be/x0fTGaMkMPU

 

 

Tesco 99. It's about the same cost as most garage forecourt standard petrol and I've never had an issue on it. I have friends who run all sorts of highly tuned cars on Tesco 99 (450bhp RX7, N/A forged Duratecs, etc) so for my very stock 220 TSi it's fine.

 

I'm lucky enough to not have to penny punch or use more than 1 tank a month.

 

The only thing a mechanic mate said to me is that better quality fuel may help with these engines due to being direct injection. Slightly less likely to to carbonize intakes but I think there's little in it.

2 minutes ago, Dooge said:

Tesco 99. It's about the same cost as most garage forecourt standard petrol and I've never had an issue on it. I have friends who run all sorts of highly tuned cars on Tesco 99 (450bhp RX7, N/A forged Duratecs, etc) so for my very stock 220 TSi it's fine.

 

I'm lucky enough to not have to penny punch or use more than 1 tank a month.

 

The only thing a mechanic mate said to me is that better quality fuel may help with these engines due to being direct injection. Slightly less likely to to carbonize intakes but I think there's little in it.

Carbon coating the valves and intake is down to EGR, its common for direct injection engines to coke up in the valves and intake.

 

A good fuel will help, but it won't stop it. . Being direct injection means there's no fuel flowing in over the valves to help "wash" them. 

 

 

Just now, vrs'burks said:

Carbon coating the valves and intake is down to EGR, its common for direct injection engines to coke up in the valves and intake.

 

A good fuel will help, but it won't stop it. . Being direct injection means there's no fuel flowing in over the valves to help "wash" them. 

 

 

Theres no EGR in the TSi' is there? 

4 minutes ago, Dooge said:

Theres no EGR in the TSi' is there? 

Correct. . .

 

I didn't know that.

 

but they do use some fancy variable valve timing to give the same effect, so exhaust gasses still get back into the inlet, so coke up can still be an issue.

 

Everydays a school day.

7 minutes ago, vrs'burks said:

Correct. . .

 

I didn't know that.

 

but they do use some fancy variable valve timing to give the same effect, so exhaust gasses still get back into the inlet, so coke up can still be an issue.

 

Everydays a school day.

 

Plus the positive crankcase breather pushing oil vapour back into the inlet.

9 hours ago, vrs'burks said:

A good fuel will help, but it won't stop it. . Being direct injection means there's no fuel flowing in over the valves to help "wash" them. 

Don't the EA888 Gen3 1.8 and 2.0 TSI engines used in the Octavia 3 have both direct and indirect injection?

 

This provides fuel in the inlet manifold which will 'wash' the inlet valves.

Edited 3 May, 20233 yr by PetrolDave

Simple enough as only the driver knows how they use their car standard or remapped to try different fuels and see if you feel any difference in smoothness / efficiency or economy.

& take into account they can change by season or area of the UK. They will meet the Minimum Octane on the pump though.

 

 

11 hours ago, vrs'burks said:

Tesco momentum for me.

 

Used to use v-power on my old car and before the prices went through the ceiling, at some points v-power has been as much as 20p a litre more than momentum round my way. . 

 

This is worth a watch if you have a spare 20mins.

 

https://youtu.be/x0fTGaMkMPU

 

 

Good video with a lot of helpful info.

 

In reality, not a lot to choose from for the different high octane fuels for a highly tuned engine.

 

What the tester doesn't mention is the composition of the fuels. Shell, BP, Esso etc use the same base fuel as Tesco and the other supermarkets, but extras are added to help clean the fuel system etc. This helps to explain the extra cost.

 

Personally, I will use supermarket for several weeks and then put a tank or two of Shell in to clean the pipes etc.

 

 

 

If you do not want the additional stuff then try the likes of Carless 102 ron Hiper250, or other race fuels.

Double the price but good for high days and holidays.

Just treat it like you are getting half the MPG.           We used to be able to buy BP 102 ron at a pump in Fife near Knockhill.

On Continental Europe 100+ Super Unleaded is as nice without costing anything like as much.

 

If you need or want Additives, Detergents (Sodium) then yes there are packages, but the Higher Octane is all many want.

There are additives / detergent in your oil. 

Turbos love some ethanol which is the Bio.  But there are higher octane without the ethanol.  Loads of choices, but you need to know what you are getting.

 

ESSO in some of the UK comes from Greenergy, as does Momentum 99 and others.

Yes the same base fuels, but some come into the UK now from Europe and are still winter formulation, so less hygroscopic.

Some is travelling the world in shipping tanker, some from UK cracking plants.

 

Tesco published their test results, more about emissions, they used to publish easy to find the formulation of Unleaded & Super Unleaded and so did ESSO.

Never easy to find what 'Special Additives / Formulation Royal Dutch Shell has in the UK, it is not the same on other regions just as other producers fuels are not. They are not all the same Octane either.

 

Ethanol is quite hygroscopic, hence less used in some regions / storage facilities in fuels.

 

388380a097b04fe693a8c27db8bb4974 (1).pdf 6ca06d648b9541e78fa838fece4a1a23 (1).pdf

Edited 3 May, 20233 yr by toot

6 hours ago, PetrolDave said:

Don't the EA888 Gen3 1.8 and 2.0 TSI engines used in the Octavia 3 have both direct and indirect injection?

 

This provides fuel in the inlet manifold which will 'wash' the inlet valves.

I know some of the tsi range have a 5th injector in the inlet manifold, but I don't think the gen3 ea888 is one of them.

 

Happy to be told otherwise but I don't think they have them.

 

EDIT: it seems they do have duel injection in the EU but didn't bother fitting it in the US market.

 

Another school day.

Edited 3 May, 20233 yr by vrs'burks

Bump for @jimcallaghan