I hate to disappoint, but I can't answer that for you. Mine doesn't have the upgrade (if it was even available on the base GLS) that gave 'em the computer. I'd like to think that they 'd be CLOSE as far as average, trip, and instant MPG go. Being able to monitor beyond that for things like air temp, water temp, ignition, throttle position, load, and others, as well as read/clear "check engine" codes is what prompted me to go the SG route.
What numbers do you want to know the meaning of?
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