Quote:
Originally Posted by KMPrenger
Does the first gen EB in the F150 also run better on 93? Obviously the Lincoln is tuned for it, or perhaps has different tunes depending on what octane level you are running, but does the F150 also have a separate tune for 03 octane?
If so, that would be news to me, as that would be quite the bump in power from simply running on 93.
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My '13 with The 3.5 does feel like it has more pep on 91 vs when I've filled it with 87. But that's not really verifiable without dyno testing.
The difference in output via different octane fuels is prevalent in the EB engine. Ford admits to using 93 for higher outputs, in vehicles where that is a better selling point, but 87 for fuel efficiency numbers in those where it's FE is a better selling point.
MK
X's 2.7EB rates on 93 @ 335hp/380tq
F-150's 2.7EB is rated on 87 at 325hp/375tq
The Mustang EB on 93 is 310hp/320tq
On 87 it rates at 275hp/300tq
2.0EB in Fusion makes 240hp/270tq on 93
On 87 output is 231hp/270tq
This seems to point to the PCM and knock sensors pulling timing on "lesser" grade fuels is a reality. The Navigator is rated on 93 as per it's advertising, there is a * near the output. The F-150 is rated on 87.
This has never been spoken to directly by Ford as far as I've been able to find in my researching the net. So while this is all conjecture, it seems to stand up.