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  1. Jul 31, 2023 · Ford Expeditions built between 1997-2008 were designed to use only regular gasoline with an octane rating of 87; For the 2008 – Present generation, 87 octane is recommended for the 5.4L Triton V8, and 91 octane is recommended for the 3.5L EcoBoost Triton V6.

  2. Oct 21, 2021 · All that to say premium isn’t needed, and it probably doesn’t make a difference for your average use cases. But Ford did design the truck to be able to take advantage of higher octane fuel, so it isn’t a total waste (for the right use cases) either.

  3. Jun 28, 2022 · 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.

  4. Jun 6, 2021 · Just read through my manual and saw "for best results" run higher octane. I will fill up for the first time tomorrow with 91 octane just to see the difference. I have been running on the dealership gas and assume it is 87.

  5. Recommended fuel (minimum) 87 octane 87 octane Fuel capacity 23.2 gallons 27.8 gallons Fuel delivery Gasoline direct injection Gasoline direct injection Exhaust Single, stainless steel Single, stainless steel Oil capacity With oil filter 6.0 quarts With oil filter 6.0 quarts EPA-estimated rating 4x2: 17 mpg city, 23 mpg highway, 19 mpg combined

  6. Jun 25, 2023 · Its 400 hp is produced at 5,500 rpm while its noticeable 415 lb-ft of twist comes online at 3,500 rpm. Full disclosure: both of those ratings are only available on premium fuel (91 octane or higher). A slight horsepower penalty is paid when filling up with lower octane gasoline.

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  8. Jul 31, 2023 · So what types of gas a Ford F-250 and F-350 take? The recommended fuel for gasoline engines (5.4L, 6.8L, 7.3L) used in the F250/350 is regular unleaded gasoline with a minimum octane rating of 87. Diesel engines are recommended to use Ultra Low Sulphur Diesel.