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Old 03-23-2013, 12:28 PM   #43
svtguy88
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Forgive me if this is a stupid question, but what is it that makes the Zetec not capable of running with higher compression (than 10.2:1) on pump gas, while other engines can do so?

Just trying to understand what's the problem here. I know plenty of people running beyond 10.2:1 on pump gas in other cars. What makes the Focus different?
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