« Reply #4 on: 22 January 2008, 21:23 »
There's been quite a few tests done on super unleaded petrol and the two best always seem to be Shell V-Power & Tesco 99
I think both are now 99 RON
the GTi manual recommends 98 RON ... so either of the above are fine
Other tips are :-
Petrol goes "off" over time, so best use a popular busy petrol station ! (one test found Tesco 99 best for consistency on this score)
It is also slightly more dense when cold....so fill up on when it's cold - early mornings !!

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