JohnnyB

As a day to day runner I have bought a JDM scoobie legacy GT B twin turbo.

As you may know in japan they use 100 octane.

I have been using shell V power at the mo, whats the rating for that stuff?


Whats what other options have I got from other supliers, I have heard Tesco do a 99, but I cannot find it at me local tesco.

what about BP?

Cheers

John

DaveyBoyS1

V power is 98 ron rating

pete mcrash

iTrader: (1)

.....no its not its 99ron..............the old optimax was 98ron............dont use supermarket fuel in a performance car...(if u class a scooby as performance... )

JohnnyB

lol bitch its a day to day car.

But I must say it fucks all over my sierra in turn in, the GT b has Billys and it handles, does yours lol

fuzzy

yes indeed, 99 ron.

Moose

v-power is 99, so is tesco's finest, pretty sure bp ultimate is 102

richard_syko

Do not quote me but, I believe the Japs use an average of the fuels RON (Research Octane Number) and MON (Motor Octane Number) number which makes it different to RON, if so this is the PON number.

AlexF

bp 102 is 102

bp ultimate is 97 or 98

Alex

Moose

ah stand corrected lol i knew one of theirs was 102 tho

AlexF

I doubt Japan do...

BP 102 is 102 RON and 90 RON so the average (PON) is 96!!!

Its gonna be some AMAZINGLY high octane fuel to beat that!

Alex

AlexF

eg

http://www.aaoil.co.uk/racing-Sunoco...ed-racing-fuel

105RON, 95MON
@ £3.29/litre

JohnnyB

so am I incorrect, I was told that on some leggy forums to use at least V power.

I would like to be corrected

AlexF

I ran my Scooby RA import on Tesco 99... it was fine till it went pop!

Saldy I can't tell you why it died yet - but I think its bearing related rather than fuel!

aLex

JohnnyB

eg V Power is not cheap

JohnnyB

i have been told the pistons can take the det, but the force on the bearing cause them to fail?

AlexF

det is det

it kills engines!

Alex

JohnnyB

so V Power and octane booster is need ?

Jamz

I was talking to a mate about this the other day.

He's just bought a Celica GT-Four and wanted to run it on supermarket fuel which I advised him not to. His argument (second hand via an ex Bentley tech, now multi-millionaire in-law) as that modern ECUs would detect the onset of DET via the knock sensor and adjust the timing/boost to compensate thus not melting the engine....

While this is probably true I don't think I'd want to risk it.

pete mcrash

iTrader: (1)

..........after spending copious amounts of cash.................YES........

JohnnyB

they do detect knock mine has a knock sensor, but they will only reduce boost and timing as far as they are programed to do.


so if it was programmed to say retard boost and spark to a certain point, but was never designed to reduce to 95 ron so the ecu has reduced as far as it will go, but it will be still deting on 95 ron super market petrol it will still melt and have bad runing before the failure.

JohnnyB

from what I have read the subaru ecu will sort it to 97 ron, but after that it will fuck it.