Steve Scooby

thinking of getting another uk bugeye wrx just wondering can you use normal unleaded on them without causing any engine damage . My last bugeye had a sticker saying to use super unleaded only .cheers

JonMc

iTrader: (51)

Yes you can, it is designed to run on 95RON which is 'super-unleaded' in other markets. If you read the handbook you'll be fine, but by using 97(+)RON it will run better and most likely suffer less knock if you drive it 'with vigour'

Steve Scooby

cheers for that , but what did you mean by other markets

JonMc

iTrader: (51)

The US has everything from regular at about 91RON, and they consider 95RON as super iirc

poolio74

He means other countries super is 95ron mate

Steve Scooby

cheers

GIBZY

iTrader: (4)

Ive always run my bug on Momentum but when booting it the CEL light blinks its nuts off. If i can use normal unleaded and not have it to suffer that much i would use it (only because a local s/unleaded garage is about 1/2 drive away)

JonMc

iTrader: (51)

The CEL blinking is usually indicating a misfire of some description - mine did that when the connector on one of the coil packs came loose

Galifrey

iTrader: (3)

US 91 is the same as our 95

They use AKI and we use RON

91 AKI is 95 RON

AKI is Anti Knock index and is an average of RON and MON

Typically fuel rated 4 lower than ours is equivalent, ie 91 is our 95 and 94 is our 99.

Galifrey

iTrader: (3)

And he is wrong

JonMc

iTrader: (51)

Well I apologise for not being perfect

Galifrey

iTrader: (3)

Well if someone gives factual information that is wrong, you feel it is more appropriate to NOT point it out?

Whatever man

JonMc

iTrader: (51)

Correcting someone is one thing, but the second post to gloat about it is just petty!!!

Can you explain why the fuel flap says super unleaded only when the handbook says 95RON is fine for a WRX?

Don Clark

The real answer is that "super unleaded" in Europe, the market which UK cars come under at Subaru, "as a whole" is 95 RON, hence the fuel flap label.

And depending on which country you are in, it can be called "Superbleifrei", "Euro sans plomb" or "Euro95"

Taken from Wikipedia...........

Grades of motor gasoline

There are different grades of gasoline, which in its anti-knock properties and distinction to the achievement of those in the species composition of the mixture of hydrocarbons.

Normal petrol ( RON 91) (In Switzerland, Spain, Sweden, Austria and other countries not available)

RON 95 under the following names:
Super (Germany, Austria)
Unleaded 95 (Switzerland)
Sans Plomb 95 (France, Switzerland)
Super Euro

RON 98 under the following names:
Super plus (Germany, Austria, Switzerland partly)
Unleaded 98 (Switzerland)
Sans Plomb 98 (France, Switzerland)
BP Ultimate Unleaded 98 (Switzerland, at least RON 98), BP Ultimate Super 95 (Austria, RON 98.4)


As a species not yet standardized 100-octane gasoline, among other things under the following brand names:
Shell V-Power Racing,
BP Ultimate BP Ultimate 100 and 102 (Germany) or
OMV Super 100 (Austria)

http://www.energy.eu/



Here in the UK we standardised on RON 95 as "Unleaded".

ALi-B

iTrader: (1)

Can you explain why the fuel flap on some UK car says GASOLINE instead of Petroleum? We don't have Gasoline in the UK...that to me says its not a specific label

My view is in a factory chruning out 1000s of cars all with the same filler flap. Are they going to apply different stickers to each on and risk mixing them up? No.

Instead when the car lands in the UK, along with its retrofitted sigma alarm, it is given a UK english owners manual and service book, that then accurately says what is specific to your car.

If its incorrect....Sue International Motors (the importer)

Why they didn't put the RON number on the flap is beyond me, then these threads wouldn't exist But then my R32 and BMWs says use 98Ron on teh flap, they all run fine on 95Ron (and even says 95Ron is ok in the manual), but these cars have good engine managment with full throttle wide band fueling control and knock correction, not the open-loop piston melting poop that non-UK JDM Subarus were supplied with )

Don Clark

Once again it's a European market term of which UK cars are part of.