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Old 10-30-2013, 05:57 AM   #14 (permalink)
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1. after long time storing octane rating of gasoline may be slightly lower. so, use it in older engines with lower compression ratio, or without overheating and extremal loads.

2. if light components evaporated, cold start ability of gasoline will suffer. if outside is hot weather it may be not so important. or you can add about 5-10% of something like isopentane for cold weather.
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