8th Generation Honda Civic Forum - View Single Post - SI with 87 octane gas *Threads merged*
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Old 06-06-2009, 03:20 PM   #243 (permalink)
SGTfr0sty
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Join Date: Jan 2009
Location: Temple, Tx
Age: 34
Posts: 455
Sean
*sigh* just put 91/93 in your SI... it's not that difficult. Only in emergencies should you use anything else. It says it in the manual, on the fuel door, ask Honda they will tell you the same blah blah blah.

Quit being cheap and risking your K20 motor. If you wanted to use cheaper gas, you shoulda bought an EX, LX, DX. You paid extra for the added performance of an SI, so by default you have signed on to pay for premium gas. Jeez
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