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Hey everyone. My parents have a 05' Sierra Hybrid...what milage is everyone else getting? When my dad drives it (like an old man) he's getting about 18mpg...when my mom used to drive it, she'll get about 18.5, my brother gets 16 (heavy foot.. lol) and I get about 20.3 but i don't baby it...


And something else thats weird...when towing any trailer, no matter how small (tried a 200 pound 5x5' trailer) the MPG said it went strait to 16.1. Whats up with that?

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