gmcmahon's Profile

Real Name: Greg M
Joined: September 2016

In the Garage

  • F-250

    2008 Ford F-250 Lariet
    Added Sep 2016 • 245 Fuel-ups

    Property of gmcmahon

  • 13.1 Avg MPG Best In Garage

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Tips

Wider throttle opening, lower RPM

Car and Driver magazine, whom I trust in many regards, have ... ...

by cmartin2470

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