GolfGTIforum.co.uk
Model specific boards => Golf mk5 => Topic started by: NewGolf on 11 April 2008, 21:18
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Ok so I have 2 choices where I live. Unleaded which is 95 RON and Super Unleaded which is 98 RON. Unleaded is 79 pence per litre where as super unleaded is 91 pence per litre.
I usually fill up with normal unleaded and the car seems ok (and its lasting me a lot more than my Audi S4 did!!!), but from a few threads I have read it seems that people are getting more mileage using super.
Can someone explain this with comparison to costs per mile using both fuels? I cant feel any difference, I filled the car today with super and blasted it around for a while but it feels exactly the same.
I would have thought that the car would use the same amount of fuel for each mile, just produce more HP/TQ doing so? Perhaps its due to being more efficient and using less fuel to travel the same distance?
Ok now I'm confused lol!! :rolleyes:
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i think it takes the ecu about 200+ miles to adapt to the new petrol, so you should see the benefit after your second tank
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The car will take a few miles to adjust to the super unleaded. The Tfsi engine needs superunleaded to run at its most efficient both in terms of performance and economy. Check inside your petrol flap, its states superunleaded is required :smiley:
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Ive been informed that the FSI *technology* runs much more economical, powerful and smoother on higher octane fuel?
Can't find the link to the information etc but it seemed pretty true.
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Can't give you any figures with the GTI as I've run it exclusively on Shell V Power (Optimax) since new. I did a comparison on my old Boxster which had 15k miles when I bought it. Got 23-24 on regular unleaded around the doors and and got 26-27 on Optimax. Use a tankful of each for a comparison and try to adopt the same route/driving style for a worthwhile comparison. Do the math and then decide. Ordinary unleaded is fine for every day driving but I like to use the best fuel I can for the car - overall performance and fuel consumption is fine for me.
Cass
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Ok so I have 2 choices where I live. Unleaded which is 95 RON and Super Unleaded which is 98 RON. Unleaded is 79 pence per litre where as super unleaded is 91 pence per litre.
I usually fill up with normal unleaded and the car seems ok (and its lasting me a lot more than my Audi S4 did!!!), but from a few threads I have read it seems that people are getting more mileage using super.
Can someone explain this with comparison to costs per mile using both fuels? I cant feel any difference, I filled the car today with super and blasted it around for a while but it feels exactly the same.
I would have thought that the car would use the same amount of fuel for each mile, just produce more HP/TQ doing so? Perhaps its due to being more efficient and using less fuel to travel the same distance?
Ok now I'm confused lol!! :rolleyes:
79 - 91 pence per litre?? :laugh: :laugh: Where do you live??
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Oh, and I definitely get more to the gallon from V-Power, plus it does feel quicker and smoother. Got caught a bit short a few months back and had to put standard supermarket cr*p in and the car ran quite lumpy :angry:
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79 - 91 pence per litre?? :laugh: :laugh: Where do you live??
Guernsey in the Channel Islands, where it has a 35mph speed limit :evil:
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79 - 91 pence per litre?? :laugh: :laugh: Where do you live??
Guernsey in the Channel Islands, where it has a 35mph speed limit :evil:
They give with one hand, and take away with another! :embarassed:
Oh well, at least you get decent weather! :grin:
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I'm taking the GTI to the big suspension bridge in Millau southern France that was on Top Gear, and want to get the best mileage I can.
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...Surely the question of whether to use 95 or 98 RON in the 2.0T FSI shouldn't be a question of fuel economy or cost per litre :huh:.
This engine needs at least 98 RON to run best as it has been designed and also such fuel with its additives will help the engine's longevity. Anyone bothered about the fuel cost difference between 95 and 98 should have bought a TDI in my opinion.
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...Surely the question of whether to use 95 or 98 RON in the 2.0T FSI shouldn't be a question of fuel economy or cost per litre :huh:.
This engine needs at least 98 RON to run best as it has been designed and also such fuel with its additives will help the engine's longevity. Anyone bothered about the fuel cost difference between 95 and 98 should have bought a TDI in my opinion.
A fair point well put RR! I want to treat my car as well as I possibly can while I own it, so for me V-Power is a must (plus you get free Ferrari's! :grin:).
You wouldn't use cheap car wash/polish etc so it makes sense to protect the important bits you don't see :smiley:
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Ok so its Super unleaded from now on then. If only the dealer had explained this....
The petrol cap states 95 RON, I guess thats as a minimum.
By the way, even though diesels do get more MPG, for some reason its a lot more expensive here. There is a lot more duty on it in the Channel Islands than petrol. All the taxi drivers and builders are complaining.
if only we had V Power....!
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....The filler cap 95 RON is a minimum - She'll run on it but it's not good in the long term. Optimax was 98 and I think V-Power is 99.