Another MPG question

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May 6, 2013 | 09:00 PM

John R. Thomas

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More Turbo

Joined: Apr 2013

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From: Waukesha WI

Another MPG question

I just bought a 75 F-150 2wd, powered by a 390, 4V, C-6, LWB, 3.5 gears. std cab. What can I squeeze out of a gallon of regular ?

May 6, 2013 | 09:37 PM

devino246

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From: Lynchburg, VA

Why do you just drive it to find out?

May 6, 2013 | 09:43 PM

montana_highboy

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Joined: Apr 2008

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From: Big Sky Country

10-12 would be my best guess.

May 6, 2013 | 09:45 PM

John R. Thomas

Thread Starter

More Turbo

Joined: Apr 2013

Posts: 661

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From: Waukesha WI

I've owned it a month. The tires are a smaller diameter on wide rims.
The spark plugs are rusty. I'm sure the carb needs some fine tuning too.
The gas tank neck is a bear to fill. I do not really know when the tank is full.
Lots of variables. Therefore, the original question.

May 6, 2013 | 10:35 PM

sloopy76

Freshman User

Joined: Apr 2013

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I agree with montana. FE's are tough as nails but always thirsty.

May 6, 2013 | 11:03 PM

HIO Silver

Fleet Owner

Joined: Dec 2009

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From: NorCal

Well, my brother reported his 69 F100 (360-2V/C6 and 3.25 rear gears) managed 15.7 MPG at 65 MPH down I-5 (straight and boring!!) from SF to LA.

Drive like a nun!!!!

May 7, 2013 | 12:02 AM

Ford428CJ

Elder User

Joined: Mar 2004

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From: Klamath Falls OR

If you had a 4 speed... Its not uncommon to see 15~16mpg on the freeway. With that C6 12~13mpg. Headers, hot ignition and a few other goodies sure do help the FE.