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The Ultimate MPG thread.

 
Old 02-08-2019, 10:14 PM
  #1241  
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Anyone tried the old skool method? Install a vacuum gauge and see just where the sweet spot is on YOUR motor? All motors are just a little different. Every car I have ever owned has gotten a vacuum gauge installed. Oly

edit If you run a 4100 carb you can use the vac gauge to set where the secondary's dump. Note the vacuum at which the secondaries open. Compress or stretch the spring to change when it dumps.

Last edited by OlyWa; 02-18-2019 at 06:49 AM.
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Old 02-17-2019, 06:51 PM
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Originally Posted by Luke06351 View Post
I've had my 2013 F150 limited for only 1 week. I take a back road to work with hills and winding roads. I set the cruise to 45 mph and get 17 mpg. This morning I replaced the factory air filter with a K & N filter and got 20 mpg.
Maybe have to give that a try. When My 2013 King Ranch gets 16 mpg, I feel really lucky.
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