Quote:
Originally Posted by brjak
Has anyone ever used it.
Boxster calls for 93 Octane, many places around here the highest i can buy is 91. Also, in a pinch could you buy 87 or 89 and add octane boost.
Has anyone ever added octane boost to 93 octane and found an increase in power etc.
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Don't waste your money. Use the 91. And don't buy less than 91 and jack up with booster. That won't save you anything either, if it even works to do anything.
If you're at a track event, you can probably buy some 98 octane unleaded there, and average out to 93.
Buy the highest octane (91....93) you can from the busiest (fresh) national chains (quality) you can find.