Anybody run the maverick on strictly premium fuel?

[2022MavRogueFX]

I run my 22 non hybrid on 87 reg fuel. Hearing people get more horsepower and better for engine to run on high test. Any opinions?

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[Blue_Max]

The owner's manual says the engine is tuned to run best on 91 octane, so I've been using only 91 because it's available here, and 93 when 91 is not available. But since I've never used 87, I have no idea if there's any difference in feel.

 

[Chops]

I run my 22 non hybrid on 87 reg fuel. Hearing people get more horsepower and better for engine to run on high test. Any opinions?

2025 owners manual says 87 octane fine but:
“For best overall vehicle and engine performance, premium fuel with an octane rating of 91 or higher is recommended. The performance gained by using premium fuel is most noticeable in hot weather as well as other conditions, for example when towing a trailer.”

Only 2 tanks of 89 octane into my new EcoBoost so far. Going to use 91 during the Spring/Summer/Fall out here in the Arizona Desert.

I drive maybe 3000 miles per year, so added fuel cost will be relatively low.

Not expecting more horsepower or better MPGs - just want to avoid any potentially expensive engine knocking. My Lobo will stay in Sport mode as I’m retired yay.

 

[ScottyC]

I would add a non-ethanol blend to that.

 

[REDRUM]

No need to spend the extra money.
The book says 87 so that's what I use.
Never had problems with any vehicle using the recommended octane.

 

[Surly Old Bill]

why spend the extra money on fuel that the vehicle was not engineered to use? Placebo effect of making you think you're getting better mpg or the engine has "more power" or will "last longer"?

 

[Tbone289]

why spend the extra money on fuel that the vehicle was not engineered to use? Placebo effect of making you think you're getting better mpg or the engine has "more power" or will "last longer"?

It's engineered for a range of octanes. You may want to read up on Ford Octane Adjust Ratio self-tuning strategy.

 

[Surly Old Bill]

It's engineered for a range of octanes. You may want to read up on Ford Octane Adjust Ratio self-tuning strategy.

RIGHT! I forgot we went down this road before.
But I guess the real question is: is it worth the extra cost to get a few more HP? Is it a racecar, or towing an excessive amount uphill?

 

[24hrsun]

If you can find it ethanol free, Top Tier, 91+ octane for the win, but depending on where you live that can be tough. If you can't find it in Top Tier then look for fuel additives with PEA and dose up the ethanol free for similar effect.

 

[Blue_Max]

2025 owners manual says 87 octane fine but:
“For best overall vehicle and engine performance, premium fuel with an octane rating of 91 or higher is recommended. The performance gained by using premium fuel is most noticeable in hot weather as well as other conditions, for example when towing a trailer.”

Living in Florida, I figure it's worth it to stick with 91 octane. Also, my previous vehicles required 93 and got terrible mileage, anyway, so I'm saving a lot on gas even buying 91.

 

[ScottyC]

I run 91+ in my 2006 Mustang GT and 1983 Mustang GLX....also the lawn equipment that is not battery operated also get the 91...mainly, due to it being ethanol free. The Mav gets 87 octane and I don't worry about ethanol in it, but when I find 87 octane non-ethanol blend, I get that.

 

[dalola]

I run my 22 non hybrid on 87 reg fuel. Hearing people get more horsepower and better for engine to run on high test. Any opinions?

The Ford spec's for peak HP/TQ on the EB are based on 91 octane fuel. If you don't need/want maximum performance (towing, hauling heavy, peak acceleration, etc..), then you don't need to buy 91/93 fuel. There is no danger to your engine, you will just be down on peak power 10-15%. If, on the other hand, you need/want maximum performance from your engine, then 91/93 fuel is required. .

I don't know why this concept is so difficult for so many....

 

[Chops]

why spend the extra money on fuel that the vehicle was not engineered to use? Placebo effect of making you think you're getting better mpg or the engine has "more power" or will "last longer"?

Owners Manual recommends premium if living in hot climes like me - to minimize the risk of pre ignition which could damage/destroy the EcoBoost.

Engine damage would still be covered within warranty if using 87 of course. But I care for my little EcoBoost

And I also ran the math. Low probability of major engine repair is more costly than high probability of spending extra on my low mileage premium usage.

 

[Chops]

RIGHT! I forgot we went down this road before.
But I guess the real question is: is it worth the extra cost to get a few more HP? Is it a racecar, or towing an excessive amount uphill?

It is not about extra HP - it is about avoiding engine damaging pre-ignition.

“Extra Horsepower” is marketing hype. Avoiding pre-ignition is based on engineering knowledge.

 

[jewc75]

I ran 93 every tank from new in my ecoboost. Im in south Texas where its hot. The owners manual clearly says when to use a higher grade octane, thats when you are in a hot climate. Now i have a F150 ecoboost and run 91 because thats what the owners manual recommends running period, temp doesnt matter.

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