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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.
- Small Package, Big Power
- Ilarities & Differences with The 2.7L Nano Engine
- Robust Rotating Assembly
- 39mm Turbos
- Performance Roadblock: The 10R60
- Common Mods
- Cam Phaser Issues
- Exhaust System Leaks
Turning out better than 2.2 horsepower per cubic inch, the 3.0L EcoBoost V-6 in the ’20-present Ford Explorer ST is impressive. 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 pe...
While the 3.0L EcoBoost isn’t a direct derivative of the 2.7L truck and Bronco engine from the Nano family, there are similarities. Two big examples are that the composite intake manifold and the aluminum cylinder heads share the same part numbers. We presume this makes them interchangeable. However, their 60-degree blocks are noticeably different....
Inside the crankcase, it’s easy to see that the 3.0L EcoBoost was built to handle the stresses that come with a high performance, direct injection engine that’s boost-fed. Thanks to a comparison put together by ZFG Racing, we know that the 3.0L pistons boast an oil cooling gallery, which allows engine oil to be sprayed up into the bottom of the pis...
On each bank of the 3.0L EcoBoost, you’ll find a turbocharger affixed to the exhaust manifold. The turbochargers, which are of the fixed geometry variety, are manufactured by BorgWarner but feature FoMoCo cast into the compressor housings. And being that the ST engine employs true twin-turbos (i.e. a parallel turbo configuration), each snail is siz...
The verdict is still out on the 10R60 automatic transmission’s threshold for pain. Presumably, Ford’s 10-speed slushbox will live just fine in a mod-free Explorer ST. But the kind of customer the ST attracts isn’t exactly the type to leave a vehicle stock. “Spirited driving,” combined with aftermarket tuning, intercooler, exhaust and air intake upg...
Speaking of mods, a larger intercooler is one of the first upgrades an ST owner makes when they begin to get serious about making more power. Luckily, Ford provided enough room behind the grille of its ’20-present Explorers to swap a significantly bigger intercooler into place. The aftermarket units sold by Whipple, Steeda, Mishimoto and CVFprovide...
No review of an engine would be considered thorough without making mention of its most pressing issue(s). And since cam phaser failures can cost an Explorer ST owner an engine, that’s where we’ll start. When it happens you usually get a rattle, tick or tapping at cold-start, and then the noise gets progressively longer. Per Ford, cam phaser repair ...
Factory exhaust leaks are a more frequent yet (thankfully) much less severe problem encountered by Explorer ST owners. Specifically, the flex pipes in the OEM system are known to begin leaking, and Ford issued a technical service bulletin (TSB) for the flex pipe issue, along with making mention that their respective brackets being part of the probl...
- 3.36-inch (85.4 mm)
- 60-degree V-6
- 180 ci
- 3.39-inch (86.1 mm)
Recommended fuel (min.) 87 octane 87 octane Fuel capacity 13.8 gal. 13.8 gal. Induction system Turbocharged Naturally aspirated Fuel delivery Direct injection Direct injection Oil capacity 4.4 quarts (with oil filter) 4.4 quarts (with oil filter) EPA-estimated rating (city/hwy/combined) Actual mileage will vary
Jul 25, 2023 · Bottom line the owners manual governs and the Ford engineers said 87 is good enough across all operating situations and there is no increase in power for higher octane than specified. Give it a read.
Standard: Ford Co-Pilot360TM – includes auto high-beam headlamps, rear view camera, blind spot information system, lane-keeping system, and pre-collision assist with automatic emergency braking, which includes pedestrian detection, forward collision warning and dynamic brake support.
Jan 29, 2021 · If an engine runs well with 87 octane in your environment (e.g. temperature, altitude) and your timing is not being retarded, then it is the better choice. The Mazda SkyActiv engines are somewhat high compression and Mazda's recommendations are similar (87 OK, but 91 optimal for max performance).
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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
