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is 93 octane a must? (ka24de)
my gas door says use premium only. And being the ka24de is slow as fck and has very medium compression why does it require 93?? I know 10.0 + would need it but i just do not see the need for 93 octane(or whatever premium is at a given station).
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95 S14 se RB25DET 348whp
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