87 Octane?

[bluesteel]

Always 87, works great. I'll use higher octane towing in the mountains, though.

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[Shakesbear]

Living in South Florida, we've experienced fuel supply disruption as a result of the record-breaking rainfall that affected Ft. Lauderdale a week and a half ago. As a result, certain stations are completely out of fuel or are only limited to the cheapest grade, 87 octane. After work, I decided to head to a fuel station since I was only on one bar and the fuel light popped on. I went to a Mobil about a mile down the road. The only grade they had was 87 octane so I bit the bullet and filled with it anyway. Ever since I got my Maverick, I've only put 89 octane which makes it run optimally. After putting 87 in for the first time however, the car was not happy about at all. It keeps sputtering, bucking, and seems sluggish on acceleration. Even the engine note sounds a little different, like it has a deeper tone. I told my dad about it and suggested getting octane booster at an auto parts store. I'll give it a try but I'm writing this because I'm questioning whether or not to ever use 87 octane again despite the vehicle being rated for it. I've read the Ecoboost engine is made to run on 87 but I'm sure it's only if you're not looking for optimal performance, fuel economy, or driving range. Premium is not required, however, but I'm definitely starting to see the positive affects it does have on an engine.

Does anyone else run 87 octane in their Mavericks, Ecoboost or Hybrid? If so, what are the results? Anyone else having performance issues with cheaper grade fuel?

Run 87 only, and have had no problems. I do use top tier fuel

 

[Driverdown13]

Living in South Florida, we've experienced fuel supply disruption as a result of the record-breaking rainfall that affected Ft. Lauderdale a week and a half ago. As a result, certain stations are completely out of fuel or are only limited to the cheapest grade, 87 octane. After work, I decided to head to a fuel station since I was only on one bar and the fuel light popped on. I went to a Mobil about a mile down the road. The only grade they had was 87 octane so I bit the bullet and filled with it anyway. Ever since I got my Maverick, I've only put 89 octane which makes it run optimally. After putting 87 in for the first time however, the car was not happy about at all. It keeps sputtering, bucking, and seems sluggish on acceleration. Even the engine note sounds a little different, like it has a deeper tone. I told my dad about it and suggested getting octane booster at an auto parts store. I'll give it a try but I'm writing this because I'm questioning whether or not to ever use 87 octane again despite the vehicle being rated for it. I've read the Ecoboost engine is made to run on 87 but I'm sure it's only if you're not looking for optimal performance, fuel economy, or driving range. Premium is not required, however, but I'm definitely starting to see the positive affects it does have on an engine.

Does anyone else run 87 octane in their Mavericks, Ecoboost or Hybrid? If so, what are the results? Anyone else having performance issues with cheaper grade fuel?

Yes you correct 87 is garbage fuel I’ve learned years ago when I used 87 octane and saw the affects of low octane fuel how sluggish the engine ran. So I experience the same poor performance you did I only use 89 octane mid grade unless I’m towing, driving in the mountains then it’s 91 octane.
You want to check the performance of each fuel grade this is what I do first fill the tank with 87 octane from full tank to empty then do the same with 89 full to empty then 91 full to empty when entering a freeway smash the gas peddler to the floor if the freeway is at 65+mph then take performance notes. You will see a difference. Love to hear an engine scream with tachometer up at 7500 what a feeling.

 

[ShadowChas]

Living in South Florida, we've experienced fuel supply disruption as a result of the record-breaking rainfall that affected Ft. Lauderdale a week and a half ago. As a result, certain stations are completely out of fuel or are only limited to the cheapest grade, 87 octane. After work, I decided to head to a fuel station since I was only on one bar and the fuel light popped on. I went to a Mobil about a mile down the road. The only grade they had was 87 octane so I bit the bullet and filled with it anyway. Ever since I got my Maverick, I've only put 89 octane which makes it run optimally. After putting 87 in for the first time however, the car was not happy about at all. It keeps sputtering, bucking, and seems sluggish on acceleration. Even the engine note sounds a little different, like it has a deeper tone. I told my dad about it and suggested getting octane booster at an auto parts store. I'll give it a try but I'm writing this because I'm questioning whether or not to ever use 87 octane again despite the vehicle being rated for it. I've read the Ecoboost engine is made to run on 87 but I'm sure it's only if you're not looking for optimal performance, fuel economy, or driving range. Premium is not required, however, but I'm definitely starting to see the positive affects it does have on an engine.

Does anyone else run 87 octane in their Mavericks, Ecoboost or Hybrid? If so, what are the results? Anyone else having performance issues with cheaper grade fuel?

w/over 45K miles I myself have always run 87 in my ecoboost (all my vehicles) without any problems whatsoever as I haven't found it not to be worth the extra cost, but as many already have stated I believe you got bad fuel. I know it's only my opinion (this is what the forum is for) but the manual says it's ok to run 87 unless you're using for towing and high temperatures, etc... to "optimize" your engine, but everything is run by the computer anyway.

 

[pigsareus]

I run 87 in my ecoboost. But I only get it from Costco, or if on a road trip, Chevron. I have experimented with premium and found it wasn't worth the $ difference. Slightly better MPG but I couldn't tell a difference in performance.

87 octane since I got my hybrid / zero issues. 5k miles

 

[Roadking]

I agree about the bad gas, probably contaminated with H2O…..87 for me if the manual says to use it. I am NOT smarter than all the engineers that put the engine together and designed it to run on 87.

 

[mustachemn]

I run 87 in my ecoboost. But I only get it from Costco, or if on a road trip, Chevron. I have experimented with premium and found it wasn't worth the $ difference. Slightly better MPG but I couldn't tell a difference in performance.

I've had my Maverick 9 months now. I run 87 octanes only. I'm getting 22-24 around town and 32-34 on the highway. No performance problems were noted and peppy as all get out.

 

[Blkraven66]

Living in South Florida, we've experienced fuel supply disruption as a result of the record-breaking rainfall that affected Ft. Lauderdale a week and a half ago. As a result, certain stations are completely out of fuel or are only limited to the cheapest grade, 87 octane. After work, I decided to head to a fuel station since I was only on one bar and the fuel light popped on. I went to a Mobil about a mile down the road. The only grade they had was 87 octane so I bit the bullet and filled with it anyway. Ever since I got my Maverick, I've only put 89 octane which makes it run optimally. After putting 87 in for the first time however, the car was not happy about at all. It keeps sputtering, bucking, and seems sluggish on acceleration. Even the engine note sounds a little different, like it has a deeper tone. I told my dad about it and suggested getting octane booster at an auto parts store. I'll give it a try but I'm writing this because I'm questioning whether or not to ever use 87 octane again despite the vehicle being rated for it. I've read the Ecoboost engine is made to run on 87 but I'm sure it's only if you're not looking for optimal performance, fuel economy, or driving range. Premium is not required, however, but I'm definitely starting to see the positive affects it does have on an engine.

Does anyone else run 87 octane in their Mavericks, Ecoboost or Hybrid? If so, what are the results? Anyone else having performance issues with cheaper grade fuel?

Always run 87 in my 2022 XL Ecoboost AWD. No issues at all. Getting anywhere from 30-32mpg in a 60/40 mix of highway/country road driving, 29000 miles on it now .

 

[Nw_adventure]

I run 85, after doing some research, it seems like that should be fine. The hybrid recommends 87, but Utah doesn't offer that.

For the EB - Manual states 85 octane will void the warranty. Been using 91 from Costco - @ Elevation the truck seems to drive smoother/more power than 88.

 

[Tim d]

Living in South Florida, we've experienced fuel supply disruption as a result of the record-breaking rainfall that affected Ft. Lauderdale a week and a half ago. As a result, certain stations are completely out of fuel or are only limited to the cheapest grade, 87 octane. After work, I decided to head to a fuel station since I was only on one bar and the fuel light popped on. I went to a Mobil about a mile down the road. The only grade they had was 87 octane so I bit the bullet and filled with it anyway. Ever since I got my Maverick, I've only put 89 octane which makes it run optimally. After putting 87 in for the first time however, the car was not happy about at all. It keeps sputtering, bucking, and seems sluggish on acceleration. Even the engine note sounds a little different, like it has a deeper tone. I told my dad about it and suggested getting octane booster at an auto parts store. I'll give it a try but I'm writing this because I'm questioning whether or not to ever use 87 octane again despite the vehicle being rated for it. I've read the Ecoboost engine is made to run on 87 but I'm sure it's only if you're not looking for optimal performance, fuel economy, or driving range. Premium is not required, however, but I'm definitely starting to see the positive affects it does have on an engine.

Does anyone else run 87 octane in their Mavericks, Ecoboost or Hybrid? If so, what are the results? Anyone else having performance issues with cheaper grade fuel?

Just did a Google search,it's says 89 is not needed.i plan on using 87 in my maverick .

 

[PriusHater]

87 in my hybrid since day one and still getting better than 42 mpg out of it after a year.

 

[Sleeper 7]

I always run 87. Only use 93 if im going to New England dragway . I get better MPG with 87 and dont need the extra HP to run errands and commute with.

 

[hurrah]

w/over 45K miles I myself have always run 87 in my ecoboost (all my vehicles) without any problems whatsoever as I haven't found it not to be worth the extra cost, but as many already have stated I believe you got bad fuel. I know it's only my opinion (this is what the forum is for) but the manual says it's ok to run 87 unless you're using for towing and high temperatures, etc... to "optimize" your engine, but everything is run by the computer anyway.

I've had no problems on 87 but am wondering if long range there might be an advantage to using 92 as it has no ethanol whereas all 87 in MO has ethanol? My son has converted me to Amsoil but hasn't convinced me yet to switch to ethanol free gas.

 

[baseballchamps]

I've had no problems on 87 but am wondering if long range there might be an advantage to using 92 as it has no ethanol whereas all 87 in MO has ethanol? My son has converted me to Amsoil but hasn't convinced me yet to switch to ethanol free gas.

Seems like whatever octane you break in with will work fine so why choose a higher one. I owned a Taurus for 21 years and never had an issue with 87 octane. So, I will continue with 87.

 

[Mightybeast]

Always use 87. My average is 46 mpg based between fill ups. Altho it is goes to 47 when I use Shell gas station. With temperature going up pmg should increase as well.

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