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Old 02-13-2012, 10:21 PM   #3 (permalink)
JasonG
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Join Date: May 2009
Location: Charlotte NC / York SC
Posts: 728

05 DMax - '05 Chevrolet 2500HD
90 day: 18.48 mpg (US)
Thanks: 120
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May I suggest adding a "frost heater" to help the warm up.
Don't forget to clean the turbo actuator and the intake regularly.
I wouldn't recomend changing the tune. If its a Rocketchip or Malone, they usually improve the MPG as welll as power. Kerma, it depends on if its the regular or the Q tune.
Only good synthetic oil. Shell is the preferred over here.
Be religious about timing belt changes.
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I can't understand why my MPG's are so low..........
21,000lb, 41' Toy Haulers are rough on FE!
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