Required fuel with 2015+ GT? - Ford Mustang Forum
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post #1 of 11 (permalink) Old 4 Weeks Ago Thread Starter
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Required fuel with 2015+ GT?

I have a 2019 Mustang Ecoboost now. I am very happy with my mileage, about 33.5 MPG with regular unleaded fuel. I know I'd get a bit more performance with a higher octane gasoline, but I do not need that. I'm a fairly un-aggressive driver usually.


What about the GT? Does it require premium fuel? I know the HP and torque numbers are better with premium fuel, but for 90% of my driving I'd a very happy with less numbers but more money in the bank. But if Ford recommends only Premium, so be it.


If premium fuel is required, that's a deal breaker for me trading my EB for a GT in a year..................


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post #2 of 11 (permalink) Old 4 Weeks Ago
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I'd be more concerned with the price of tires...


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post #3 of 11 (permalink) Old 4 Weeks Ago
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For the GT, as far I Know, premium (91 and up) is recommended, but not required.
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post #4 of 11 (permalink) Old 4 Weeks Ago
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I run 87 octane regular in my 2016 GT. I usually get my gas from Costco. One time the at the Turlock Costco the regular pump wasn't working and they let us pump premium for the same price as regular. I didn't notice the difference in performance in normal street driving with 1/4 of regular remaining in the tank and the rest 95 octane premium. I have never chosen premium over regular, and it hasn't caused any problems in 38,000 miles.


2010 Kona Blue GT Premium traded in June 2016 for a 2016 Oxford White GT Premium with Ceramic interior. Automatic transmission, Sync3, p265/35r20 tires, Shaker audio system. Other vehicles 1964 Pontiac Catalina 389, 1972 Pontiac Lemans 400, 1967 Ford F-100 352, 2016 Ford F-350 Dually, 2003 Ford Crown Victoria LX.
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If premium fuel is a deal breaker then you need to just stay in the minors.
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Originally Posted by Kraig1957 View Post
I run 87 octane regular in my 2016 GT. I usually get my gas from Costco. One time the at the Turlock Costco the regular pump wasn't working and they let us pump premium for the same price as regular. I didn't notice the difference in performance in normal street driving with 1/4 of regular remaining in the tank and the rest 95 octane premium. I have never chosen premium over regular, and it hasn't caused any problems in 38,000 miles.

Thanks for that information. So I gather from this thread's replies that regular is required, with higher octane recommended. That's good, so alternating grades, or mixing grades ought not be a problem.


Is that a CB antenna on the white Mustang in your photo? Or are you a "stealth cop"? <g>

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I'd be more concerned with the price of tires...

...can't be any worse than my wife's car.......very soft Pirelli tires on a 440i....and she has more of a lead foot than do I.

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post #8 of 11 (permalink) Old 4 Weeks Ago Thread Starter
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Originally Posted by Jackson3010 View Post
If premium fuel is a deal breaker then you need to just stay in the minors.

<sounds of silence.........>

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Quote:
Originally Posted by PaperSniper View Post
Thanks for that information. So I gather from this thread's replies that regular is required, with higher octane recommended. That's good, so alternating grades, or mixing grades ought not be a problem.


Is that a CB antenna on the white Mustang in your photo? Or are you a "stealth cop"? <g>

The antenna (Italian made Sirio 5000) is for a Ranger RCI-69FFB4 transceiver. It is sold as a 10 meter band ham radio or export Citizens Band radio.


2010 Kona Blue GT Premium traded in June 2016 for a 2016 Oxford White GT Premium with Ceramic interior. Automatic transmission, Sync3, p265/35r20 tires, Shaker audio system. Other vehicles 1964 Pontiac Catalina 389, 1972 Pontiac Lemans 400, 1967 Ford F-100 352, 2016 Ford F-350 Dually, 2003 Ford Crown Victoria LX.
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just in case it is not already clear from previous replies -- I believe it is the same as in earlier years: you can use any octane from 87 up; the computer will automatically self-adjust to the higher octane and will get more performance from higher octane, but it is not required; it will run fine on 87

| 2010 GT coupe | Daily Driver with some Steeda and GT500 take-off stuff for the occasional track day
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post #11 of 11 (permalink) Old 4 Weeks Ago Thread Starter
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Originally Posted by Kraig1957 View Post
The antenna (Italian made Sirio 5000) is for a Ranger RCI-69FFB4 transceiver. It is sold as a 10 meter band ham radio or export Citizens Band radio.

Thanks for that, I was wondering. I rarely see many antennae like that around here except on large trucks. I think it adds a bit of mystery to your car!

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