2014 with v6 EB. On a mission to improve MPG.

Made the following changes:

• Replaced canister purge valve
• Replaced plugs (mechanic inspected ignition coils, said replacement not needed)
• Replaced air filter

Planning to also make the following changes:

• Increase PSI from 32 to 35
• Replace fuel filter
• Introduce fuel additive to clean fuel system (would be grateful for suggestions of which one is the best)

Any other suggestions you'd recommend to inch out a few more incremental MPG increases?

 

unless something is actually wrong with the truck - your right foot will make far and away the biggest difference.

when it's time for tires you can look into some of the reduced rolling resistance/"energy efficient" tires if they make them for trucks but be forewarned that means traction = ****.

 

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1. There are year specific forums which better serve non-general F-150 issues/topics.
   
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Smaller tires.

I'm glad you found an honest mechanic. Otherwise if he doesn't use OEM he would have thrown 6 of your good coils into the trash to replace them with junk aftermarket coils. Any coil not branded as motorcraft will likely be a downgrade.
If your mechanic wasn't honest and used OEM, he'd make a great deal of profit from the install and on the wholesale/retail purchase price.

Plugs were a good idea.
I used to keep 38psi in my OEM tires.
You can use fuel system cleaner but you will also have to gain MPG to offset that cost. If you pay $80 to till the tank, call it $90 if you use an additive. Now you have to gain MPG enough to offset the extra $10.
If your truck has seen top tier fuels, there is no need to buy more additives.

 

Lets start by asking why you think you are not getting optimal MPG now? From where are you starting? 10 MPG or 20 MPG?

As for fuel additives, 40 years ago only Texaco/Chevron's Techron/Techrolene was endorsed by Porsche. As for Top Tier marketing there are about 12 detergents (essentially all the EPA has approved) and the only difference according to TT is how much is required to meet TT branding specs. So according to TT, "just use more." That is all TT is anyway.

 

As long as you do maintenance when needed, keep the tires properly inflated and drive conservatively there is nothing much you can do to make mpg's better. There is however a lot you can do to make it worse. If you're running a lift kit and oversize tires going back to stock can help. Driving style is the biggest factor. Speeds over 65-70 mph on the highway will see a significant drop in fuel economy.

Honestly, the best way to save on gas, is to drive less. Plan out the most efficient route when running errands or when on a road trip and cut out unnecessary trips. With a little thought you can reduce the miles you drive every month by 200 miles or more. That could save you $40-$50 a month. That will save you more money than adding one mpg to your truck.

I've usually kept an older beater vehicle that gets decent fuel mileage. It does help some with fuel costs vs driving my truck, but it also means less miles driven on a truck and will make it last longer. I can buy a set of 4 tires for many cars for less than one new truck tire. Having a 3rd vehicle to drive when one needs to go into the shop is a good idea too.

 

Very good information. Thank you very much.

 

Your manual specifically tells you to not to use additives. You shouldn't.

Your tires should be set to the pressure on the doorjamb unless they are a different type of tire than specified.

 

So, only clean the sensors? Don't replace them?

 

if you aren't having issues, replacing them likely won't help much of anything. A can of MAF safe cleaner is relatively cheap if you really feel the need to do something with them, it might help but likely not enough to notice/statistically insignificant