Is there any consequence filling 1/2 tank with regular in a 2.5GT?
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04-09-2006, 06:24 PM
2000 Impreza 2.5RS
you should be ok if it's bone stock, and don't drive too hard.
think about it, an ECU has enough power to correct fuel mapping due to modifications, it should have enough power to correct a few octane lower fuel.
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