Naija Bull
Member
I've been putting 87 in all my Si's for the past 7 years, including my current one. Their engines have been bullet prove, no issues. If the manufacturer states 87 is acceptable, then it is. Why would they state that 87 is acceptable when it isn't long term and risk law suits? Put 87, 89, 91, 93 whichever you prefer, you'll be fine.
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