Gas mileage test [revisited]

Back in September of 2016, a gas mileage comparison was made.

Gary, with his 2015 F150 and I, with my 1986 F150 drove the same route. I followed Gary's lead. We began at Mr. Bass's gas station by filling the tanks as full as possible [each driver filled his own truck] with 100% gasoline [what Gary regularly uses] from the same pump.


The loop was ~ 60 miles with varying speeds. At the completion of the test, tanks were again filled from the same pump.


This is what Gary reported:

This was posted on 9/16/16.

 
Gary Lewis
 
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Join Date: Jul 2010
Location: Northeast, OK
Posts: 32,866


Well, the 2016 Okie GTG has begun. David/1986F150Six got here about 2:00 and we ran a gas mileage test between his truck w/a 30 year old 300 4.9L six and my new 3.5L EB. We filled up at the same pump, and then he drove right behind me for a 63.9 mile route, after which we again filled up at the same pump.

I babied mine as much as possible and got 19.95 MPG. That's the best my truck has ever gotten, and I was happy. But, David didn't know the road and he was trying to react to my moves and stay a fixed distance behind me, so he was working the throttle more than I was. AND HE STILL GOT BETTER MPG - 21.69. So much for new being better than old.


On September 20, 2019, the test will be repeated, but this time, after Gary fills the tank for his truck and I fill my truck's tank, we will swap vehicles. Gary will still lead the way. The results will be posted.

Can’t wait!  

Wonderful! David, have any mpg significant changes been made to your vehicle since 2016?

I don't believe so, Jonathan, but if I get the chance, I will once again attempt to enhance the aerodynamics???

Are you still desiring the smaller F100 style mirrors?

If I had some, I would put them on for the drive to Skiatook and back.

1986F150Six wrote

If I had some, I would put them on for the drive to Skiatook and back.

Do you mean the little Type-5 mirrors?

Yes, Cory. This would simply be to lower wind resistance during the extended highway drive.

I believe my mirrors are type 5, but you wouldn't know it from my gas mileage numbers.

How is your foot?

1986F150Six wrote

How is your foot?

Not bad, all things considered - I don't drive my truck for speed, so I think I'm pretty reasonable.  But I've never tried to hypermile it, either.

1986F150Six wrote

Yes, Cory. This would simply be to lower wind resistance during the extended highway drive.

Ok, that's what I thought. I'll send you my old ones if you want to try them out. No charge to you...I'll be getting rid of them anyway. Shoot me an email if interested. If not, no big deal.

1986F150Six wrote

Gary ~

AND HE STILL GOT BETTER MPG - 21.69. So much for new being better than old.

lol nice, I avg that one my drive to work about 20km on country roads, and When I get on highway going about 100kph -110kph getting about 25+mpg.
These old Trucks put in work. Wonder if I do put in that M5OD if it will help it at all more Vs. 3spd Manual that I have. There is an Reason I daily my ford vs. my car

Well, Cory [Rembrant] is sending his "old" Type 5 mirrors to me, so they will be in place for the 600+ mile drive to and from Skiatook. Thanks, Cory!

Cool!  Be careful getting the mirrors off.  Don't spin those nuts on the inside of the doors.

1986F150Six wrote

Well, Cory [Rembrant] is sending his "old" Type 5 mirrors to me, so they will be in place for the 600+ mile drive to and from Skiatook. Thanks, Cory!

These old mirrors needed a place to go, and I'm happy to see them spend some time on I-40 for Bullnose MPG testing! They might decrease drag, but they'll also decrease your rear view...lol. I just cleaned them up. They're not perfect, but they'll look just fine at 60mph.

Awesome! Mighty kind of you Cory!

Those look pretty nice from where I’m sitting! 😁

The iPhone shows them well. They're a bit grungy around the edges up close, but they'll look good on the Interstate! I already have a brand new set, so these ones needed a home anyway. I would likely have thrown them out, so I'm glad they'll get some use, even if it's just for one trip;).