What type of MPG are you getting? Whens the last time you did a full tuneup (wires, cap, plugs, filters, etc.)? Dont forget to check your oxygen sensor and pcv. Any engine codes?
Let us know what you've already done to combat this problem.
For now, more tire pressure and drive with the tailgate down. All synthetic lubes (engine, transmission, and rear) will help with friction and allow the parts to move easier thus making it easier on gas.
These engines weren't especially easy on gas (or the environment for that matter) from the factory. They got around 14 city and 18 hwy stock. Somewhat sucky for a 6 cylinder.
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