GolfGTIforum.co.uk
Model specific boards => Golf mk5 => Topic started by: jphealy on 11 February 2009, 13:18
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I'm picking up my first GTI ('06 mkV) in the next week, and I'm wondering what fuel I'm going to feed it. For the last number of years, high octane petrol (ie above 95RON) has not been available in Ireland, as it carries a heavy levy from the government. However, since 2007, Maxol (a petrol station chain in Ireland) have introduced what they call E5 as their main "unleaded" fuel. E5 is a mix of 95% petrol and 5% bioethanol. It is suitable for all petrol engines. Anyway, the octane for this fuel is apparently 99.2RON. They get around the levy because of the green aspect.
So my question is, is this E5 my best bet if all else that's available is just regular 95RON? Or should I be steering clear of the bioethanol mix for some reason? Surely there is something similar available in the UK. Does anybody have any experience of this?
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my first port of call would be local VW garage and ask to speak to a senior technician for advice.
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Good idea. Out of interest - what does the owner's manual say about fuel? Does it advise a certain octane rating? Can't look this up myself yet as I don't have my car just yet!
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I think the manual makes mention of bio ethanol fuels.. can't check 'till I get home though.
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erm mine says 98RON+, same as on my filler cap.
so erm you dont have a shell garage :shocked:
v-power all the way :smug:
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I see no problem using it as Tesco 99 RON petrol has ethanol and most folk who use it either like it or lothe it.
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We have Shell, Tesco, Esso and all those, but they don't import higher than 95RON into Ireland, as far as I'm aware.
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Probably not practical but you can get 97RON in north of the border. I'm sure I have bought super unleaded in the south (Donegal?) but it was expensive. I'd speak to VW Ireland to see what they have to say, from memory the manual states that 98RON is recommended but 95RON is o.k. given that it will result in reduced performance & fuel economy.
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Yeah, I have been cheesed off on many occasions that the highest we can get in N Ireland is RON 97. I wanna try VPOWER and also that tesco 99. Maybe some day they will bring it over.... :undecided:
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VW recommend you user "super" 98+ fuel (its also in the owners best interest to use it as the FSI engine works much better on the higher octane fuel). Bobo has said the most sensible thing, I don't think anyone here is really qualified to answer that question. Speak to a senior chap from VW and see what his views are.
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Tesco 99 has 5% bioethenol in it:
http://www.greenergy.com/tesco_99_octane/FAQs.html
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I'm picking up my first GTI ('06 mkV) in the next week, and I'm wondering what fuel I'm going to feed it. For the last number of years, high octane petrol (ie above 95RON) has not been available in Ireland, as it carries a heavy levy from the government. However, since 2007, Maxol (a petrol station chain in Ireland) have introduced what they call E5 as their main "unleaded" fuel. E5 is a mix of 95% petrol and 5% bioethanol. It is suitable for all petrol engines. Anyway, the octane for this fuel is apparently 99.2RON. They get around the levy because of the green aspect.
So my question is, is this E5 my best bet if all else that's available is just regular 95RON? Or should I be steering clear of the bioethanol mix for some reason? Surely there is something similar available in the UK. Does anybody have any experience of this?
Hi I'm from Ireland and have an vRS 2.0 TFSI. The E5 is good stuff. I use it all the time. I'm getting 280+bhp with all my bolt on mods which is the exact same power level as cars in the UK with same mods using the high octane v-power.
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I use higher octane stuff now and again.
Does it really make any difference?
I don't notice anything.
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98 octane = better mpg with more hp/torque
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I use higher octane stuff now and again.
Does it really make any difference?
I don't notice anything.
According to the VW handbook it does.
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Or should I be steering clear of the bioethanol mix for some reason? Surely there is something similar available in the UK. Does anybody have any experience of this?
As stated above, it sounds very similar to Tesco 99 ...and that is highly rated by many people (including me :laugh:)
Give it a try :evil:
These guys rated it and noticed a difference in performance :
http://www.pistonheads.com/gassing/topic.asp?t=221733
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I'm picking up my first GTI ('06 mkV) in the next week, and I'm wondering what fuel I'm going to feed it. For the last number of years, high octane petrol (ie above 95RON) has not been available in Ireland, as it carries a heavy levy from the government. However, since 2007, Maxol (a petrol station chain in Ireland) have introduced what they call E5 as their main "unleaded" fuel. E5 is a mix of 95% petrol and 5% bioethanol. It is suitable for all petrol engines. Anyway, the octane for this fuel is apparently 99.2RON. They get around the levy because of the green aspect.
So my question is, is this E5 my best bet if all else that's available is just regular 95RON? Or should I be steering clear of the bioethanol mix for some reason? Surely there is something similar available in the UK. Does anybody have any experience of this?
If you do a little research on unleaded fuels, you will actually find that it is now compulsory in the EU to have 5% 'renewable' content (which means any of the 'bio' content) in fuels. For years, the UK had an option for 2½% bioethanol, but Greenergy, who make the Tesco 99 RON, also had 5% bioethanol for some years before the mandated legislation, and long before the other fuel companies - which is probably why Tesco 99 achieves more reliable and sustained tests compared to Shell V-Power 99.
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VW recommend you user "super" 98+ fuel (its also in the owners best interest to use it as the FSI engine works much better on the higher octane fuel).
Yup, the higher the octane rating, the longer the FSI engine is able to operate in 'stratified' mode.
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Or should I be steering clear of the bioethanol mix for some reason? Surely there is something similar available in the UK. Does anybody have any experience of this?
As stated above, it sounds very similar to Tesco 99 ...and that is highly rated by many people (including me :laugh:)
Give it a try :evil:
These guys rated it and noticed a difference in performance :
http://www.pistonheads.com/gassing/topic.asp?t=221733
It is a shame that PistonHeads was not able to correctly describe the actual status of Greenergy though. They are far more than just a 'reseller' or 'blender'. Greenergy are actualy Europes largest independent oil company which deals with road fuels. They have their own refinery, are building a second refinery, and actually use their own sourced biomass - completely independent of the traditional oil companies.