why not get 25 litres of Cool blue 76 race fuel, thats around the 102 mark
Linky to where you can get this please
why not get 25 litres of Cool blue 76 race fuel, thats around the 102 mark
I agree with Willie, but would add that the RON value degrades a LOT quicker than you would think.
The degradation is worse on higher octane fuels like Tesco99 and Optimax as the additives required to achieve the higher octane are added post refinement and often just prior to filling up the tanker trucks. These additives are volatile and degrade quickly.
I use Optimax exclusively as there isn't anything else locally and as my car doesn't get used from one weekend to the next, sometimes 2 weeks, I ALWAYS notice this degradation and it feels flat as fook until I top up or use OB (I use Millers CV Turbo).
On fresh petrol and using OB, the car feels so much more smoother in power delivery and seems to negate the effects (to a degree) of heat soak. as DPJ says "A good octane booster will reduce knock and lessen Correction Factors applied to timing by the ECU when the engine is under heavy load." which is why it feels to lessen the effects of heat soak.

if your still filling up with optimax its no wonder its degraded.... must be a year old at least![]()
Thanks for the replies guys. I have made a couple of tweeks since the last RR (air feed & N249 Bypass) and the booster was the last thing to try, mostly to compare both results side by side I will only get the opportunity to stick some in tomorrow morning so I hope it will still work.
I think when wynns say points they mean .2 to .5 so 99.2 RON to 99.5 RON.I went with Tesco 99ron due to a report that the local Shell garage had some dodgy V-Power, so if the bottle is right and the fuel at Tesco was fresh, I should be running 101RON.
BEWARE the NOS Octane Booster: http://www.gixxer.com/forums/showthread.php?t=226570 (Very funny, worth reading)
seen that before so god damn funny!!!