Fueling

[Cowgirlkim]

I've read that it's a split choice to use 87 octane vs 91. 2025 XLT fuel door states 87. Breaking in my 2 day old Mav.
First oil change will be at 1k miles.
No cruise control usage for first 1k miles also.

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[fstlan3]

It’s definitely split but I find EcoBoost are generally more responsive to higher octane than naturally aspirated engines. An obvious thing of course given the nature of a turbocharged vehicle. You should be good either way but personally on my Escape I’ve noticed about a 3 mpg difference. Return on investment is a thing people throw around in regards to higher pricing of premium and I don’t think MPG should be a defining factor in the decision myself, just a benefit. My main idea is ensuring a booster application has the longest lifespan it can and higher octane is a good start

 

[Cowgirlkim]

It’s definitely split but I find EcoBoost are generally more responsive to higher octane than naturally aspirated engines. An obvious thing of course given the nature of a turbocharged vehicle. You should be good either way but personally on my Escape I’ve noticed about a 3 mpg difference. Return on investment is a thing people throw around in regards to higher pricing of premium and I don’t think MPG should be a defining factor in the decision myself, just a benefit. My main idea is ensuring a booster application has the longest lifespan it can and higher octane is a good start

I have a hybrid

 

[fstlan3]

I have a hybrid

Apologies ignore me lol. I didn’t see the tag. Efficiency still stands with premium fueling though

 

[Hunters Edge]

I use 87 octane unless I'm towing. I have towed with 87 octane and did not notice a difference. I have the Ecoboost but your owners manual should offer some input.

I highly advise to wait tell 3000 miles to do the first engine oil and filter change. The oil that should be in there should be break in oil. That's the reason I would refrain from changing it earlier than 3000 miles.

Congratulations on your new Maverick. How about attaching a picture of two of your new truck. Best of luck with your new Maverick.

 

[Waterick]

With the hybrid, I think it's more important to use a high quality fuel than a high octane. There is no science behind better mileage from high octane in the Maverick hybrid unless it's pure gas meaning ethanol free and you can get that in regular grade many places where you can get non-ethanol except maybe marinas.

 

[dochawk]

I have a hybrid

unless the system adjusts turbo boost (not applicable on maverick hybrid) or uses more aggressive timing when octane is available (which I don't believe the hybrid does), octane is irrelevant. All octane does is impede premature detonation. If you're not knocking/pre-knocking, all the octane in the world won't make a difference.

Once upon a time, "premium" included both the higher octane and better cleaners. AFAIK, all brands these days put all of the cleaners in the base gas.

Using TopTier rated gas will help. It's not marketing from the gasoline companies, it's a standard set by high compression engine makers (Cadillac, Japanese, & German) to insure there is enough cleaning of injectors, etc., to use the higher compression. It's also good for lower compression engines.

 

[LisaS]

Congrats on your new Maverick!

I’ve had my 2023 XLT hybrid for just over a year. Been using 87 octane and no issues whatsoever.

 

[Toddman45]

Here we go...

 

[Master Blaster]

Find the list of stations that sell TopTier-certified fuel. I use Costco mostly, but most of the big brands are certified. Using good quality fuel with extra detergents is far more important than having extra anti-knock ingredients. Your hybrid has technically 13:1 compression, but functions at an effective 9:1 due to the way that the valves work to give an Atkinson cycle. There is zero need for high octane, as the engine will not be detonating as a result and high octane is a total waste of money on this engine. Even on the EcoBoost the knock sensors are very good at regulating the fuel curve and ignition mapping, and if you feel the need to run hi-test fuel then it has to be due to using poor quality fuel.

 

[Snowbird]

Congrats on your new Maverick!

I’ve had my 2023 XLT hybrid for just over a year. Been using 87 octane and no issues whatsoever.

Same for me. Always use 87 octane.

Also to the OP, I would not be changing my oil after just 1K miles. Depending on what type of driving you do the ICE will not be running for a good portion of those miles.

 

[AlsMaverick]

"I highly advise to wait tell 3000 miles to do the first engine oil and filter change. The oil that should be in there should be break in oil. That's the reason I would refrain from changing it earlier than 3000 miles."

Ford does not put break-in oil in the Maverick.

 

[Bad Samaritan]

If you drive a car whose manufacturer recommends regular gasoline, paying more for premium is a waste of money. It provides no increase in power or fuel economy, and no reduction in exhaust emissions, when premium gasoline was used in cars designed for regular.

No cruise control usage for first 1k miles also.

Interesting... WHY??

 

[Tim d]

I've read that it's a split choice to use 87 octane vs 91. 2025 XLT fuel door states 87. Breaking in my 2 day old Mav.
First oil change will be at 1k miles.
No cruise control usage for first 1k miles also.

I did my first oil change at 5000 miles per fords recommendation, and have only used 87 octane for the 3 years we have owned it. We also tow frequently.

 

[Bad Samaritan]

I highly advise to wait tell 3000 miles to do the first engine oil and filter change. The oil that should be in there should be break in oil.

I disagree. Break-in oil is not used in modern cars by the majority of manufacturers anymore. And 3K miles is too long.

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