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Psycho426

102.6 GCR240

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Here in South Africa the highest Octane Unleaded\Leaded is 93. At my local garage I happened to notice that they sell Shell 102.6

GCR240 Octane Racing Fuel(leaded).

I don't know weather I should try it or not?

The owner’s manual recommends 95 Unleaded (we don't have that) would I need to change any thing if I do decide to try?

PS-what does the GCR240 mean

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Can you find out if this fuel is oxygenated? Probably, the most you would need to do is change the main jet one step....maybe two. If the fuel is oxygenated, a richer main jet would most likely be the direction to go. As far as the pilot circuit, you might just need a small adjustment on the fuel screw. It depends on the distillation curve of the fuel.

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