2018 5.0 Highway MPG

[NoVaGT]

So much ignorance in this thread. The injection used for cruising is completely difference from that which is used for hard acceleration. DI improves combustion efficiency from 10-15%. There should be a 10-15% gain in fuel economy while cruising, period.

I thought I had read here that the DI is used at higher RPMs, and the PFI is used at lower RPMs, and that there's some over-lapping too.

So I'd think there would be no gain in freeway MPGs.

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[Bravo]

Well, if that was the case then we'd all be in Camaros because it gets better MPG, right? MPG is a non factor in this class of cars.

That's not the point of the thread. The thread is about, "This new V8 is awesome - out of curiosity, does the new design offer any mpg improvements? Any gains is just a plus at this point.


SVT Snake - if you're driving 50/50 city/highway, and doing 90 on the highway, then I'd say 16.4 avg mpg is very acceptable. I'd be curious of what a 55mph road trip would bring.

 

[Spork3245]

Supposedly it’s around 6% more gas efficient than the previous engine, which translates to ~1mpg more on average... so expect the same fuel economy

*This may just be for the 10-speed

 

[svtsnake]

SVT Snake - if you're driving 50/50 city/highway, and doing 90 on the highway, then I'd say 16.4 avg mpg is very acceptable. I'd be curious of what a 55mph road trip would bring.

I bet you would get 25+ mpg... but I never plan on taking a 55 mph road trip.

I have had singe tank averages ranging from 14-18.5 mpg. The 14 mpg tank included an autocross day.

Gas here in Las Vegas is 2.69-2.79, so I have spent 19¢ per mile on fuel.

 

[gmupatriot]

I picked up my 2018 GT this past weekend and drove it 170 miles home. Average was 25mpg on the highway. Since then, I have driven the car another 500 miles and filled up twice. Average mpg on highway with a steady 70mph cruise speed is easily in the 27mpg range and combined (stop and go traffic for work commute) is around 21mpg. This could become worse or remain the same as the engine and transmission is broken in properly, we will see.

This is all with 87 octane.

 

[HeavyMetalMonk]

I've been getting about 14 around town and on my first short freeway drive today (20 miles) I got about 24-25 mpg. Have more miles ahead so I'll try to update then.
Edit 6spd MT

 

[Stormtrooper5.0]

I only get 14mpg lolski. Weird, it never goes up to 14.1 or 14.2….it seems to max out at 14. I gotta reset it maybe that’ll work.

 

[GT-SV]

I get 23ish at freeway speeds of 75-80 in my ‘16 GT auto. Anybody got numbers for a ‘18 under similar conditions/common freeway speeds?

 

[melwff]

too many variables asking individuals what mileage they get. The only scientific test done is the EPA
2017 5.0 6 spd. 14 city 23 highway 17 combined
2018 5.0 6 spd 15 city 25 highway 18 combined

 

[gmupatriot]

too many variables asking individuals what mileage they get. The only scientific test done is the EPA
2017 5.0 6 spd. 14 city 23 highway 17 combined
2018 5.0 6 spd 15 city 25 highway 18 combined

I would say the EPA is pretty damn spot on about their MPG numbers. I have the A10 and my average with stop and go driving plus highway is around 21mpg.

 

[Nomadic]

If you drive a GT in a spirited or semi spirited fashion you’ll get bad to cr@p mpg. If you drive it very conservatively, you’ll still get bad mpg.

Anyone who can’t accept 13-17mpg avg, shouldn’t get a GT. I avg 13-15 in my FI PP. At 4-5k miles per year, I can live with that.

 

[Hivel]

I picked up my 2018 GTPP A10 with 14 miles on it. Drove 340 miles at 80 MPH and averaged 24.6 MPG according to the dash display. I’ve put another 200 city miles on it (rush hour commute) and the dash display is showing 20.2 MPG. Ford owners manual says to ignore MPG for the first 2000 miles.


Cheers,

 

[HeavyMetalMonk]

46 freeway miles today with 2 stops briefly. Adaptive CC set at 75 and speed varied from 65 up. Finished the trip at 27.3 mpg and it was slowly climbing still maybe would have topped out around 28.
Not bad at all imo though obviously has to be taken with a grain of salt.

 

[Petroleum Jesus]

They must have some magical A10. My 6spd gets 16mpg running hard around town, and 21-22mpg on the highway. My combined has been 18-20. Not too bad, considering I have a heavy right foot. I have no doubt I could see 25mpg cruising on the highway.

I get 30mpg highway in my 16 performance pack and 22 combined consistently.

 

[Petroleum Jesus]

This is all with 87 octane.

wat?!

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