Running 93 does help some, but the engine still lugs a bit when in gear at a stop and is actively charging the hybrid battery. Just the nature of it as the idle speed lower in gear than it is in park with eco-idle enabled. Bothered me at first because it was so noticeably rougher than expected but now I'm used to it and just part of the PB's charm.
I still haven't tried 93 octane on principle alone. I ran it in my 2015 V6 Canyon because it would ping and "chug" on regular, but damn if gas prices haven't shot up a lot since I got rid of that thing.
Well technically it does run properly on regular (87 Octane) gas. It just runs better on 93 as the system can call for higher boost and more spark advancement when needed. Dyno runs on 87 and 93 also show a nice bump in power to the wheels too. On my 20 Ranger with the stock tune switching from 87 to 93 would see and increase of 15 hp and 30 ft/lbs of torque to the wheels. One would assume a similarly scaled increase on the 3.5 EB engine with 93 as well.
Agreed. Just was a bit of an adjustment coming from vehicles that had very smooth idle characteristics at a stop to the PB where it sometimes doesn't. Running higher octane fuel may help as the engine will be able to call for higher boost when needed. You can also try manually dropping to a lower gear to see if the increased revs make a difference when going up hill.
Alright, you guys may have convinced me to finally try some 93 in this thing, given the recent gas price decline. Fingers crossed that I get a nice mpg boost to compensate for the 87 to 93 cost differential! ?
We aim to please sir!
No such thing, so those aren't your true friends
You, sir, are a true Ford fan. Thanks for the correction and education. I know I've always wanted one, but didn't notice they're all F-250s and built through 1977.5 Model Year...
One consideration for ya. The PCM learns trim strategy based on fuel octane. You may see best results after a full reset so it can set new trims right off the bat with the the new octane.
Interestingly enough, Amazon just delivered my OBD LinkEX about 15 minutes ago. Can one of you gurus kindly direct me to the de-facto thread on resetting trans tables? I assume that's what you're referring to, @erixgix?
Once you get Forscan connected click on the wrench and it should be one of the items there. Reset Transmission adaptive tables or something like that. Click on it and follow the prompts. Should take about 30 seconds to clear. After that drive around on surface streets calmly for about 20 minutes. This will allow the transmission to set the initial shift values and pressures. After that it will adapt over the next 250-500 miles to your particular habits. Shifts may still be erratic or hunt until it settles back in.
Thanks man. I believe @Snakebitten and others have suggested driving in Sport mode after resetting. Your thoughts on this?
