I'm buying my friends 93 civic and he runs it on premium gasoline. Is that bad? And would I be able to go back to regular gas?
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I'm buying my friends 93 civic and he runs it on premium gasoline. Is that bad? And would I be able to go back to regular gas?
No problem, as long as the octane rating is at least 87.
OK if it still has premium in it, will it be safe to mix it with regular
Absolutely no problem.
OK thank you
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