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2006 ford: 4x4..f150 5.4..5.4 liter..the sparkplugs and airfliter…

Customer Question
i have a 2006 ford...
i have a 2006 ford 4x4 f150 5.4 liter we had the sparkplugs and airfliter replaced and it still averages 11.2 mpg what can we do to improve the gas mileage
Submitted: 8 years ago.Category: Ford
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Answered in 6 hours by:
6/14/2010
Ford Mechanic: Tim, Ford Technician replied 8 years ago
Tim
Tim, Ford Technician
Category: Ford
Satisfied Customers: 3,580
Experience: Ford Senior Master tech, ASE certified
Verified

To improve fuel economy there really is only a couple things that can be done.

 

1) Air filter - You already did

2) Fuel filter

3) Clean injectors

4) Properly inflated tires

5) Spark plugs - You already did

6) Have the computer checked for trouble codes and reprogrammed if any updates are available

7) Limit the load in the truck

8) Use 87 octane

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Customer reply replied 8 years ago
The truck sees only highway miles no load this truck has never had a load in the bed we do use 93 octane fuel so are you sugesting we use 87 octane?
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