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Old 01-19-2013, 07:29 AM   #2 (permalink)
hamsterpower
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twitchy - '98 honda civic dx + sir + ls
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I see two possibile answers,

One, He is wrong. it did not increase.

Two, it is more accurate to adjust the flow of CNG. So he is getting a better(leaner) mixture. AND has to use less throttle for the same work. Netting better overall fuel economy.
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