13' Eco Towing Performanec
Hello Fellow Rv'ers; An update on our Ecoboost's performance on our first little 4500 mile excursion. Started from the 4 corners of New Mexico. Filled with 91 octane and kept using 91 octane the fir...
Forum Discussion
Heisenberg wrote:
Without a tuner running higher octane fuel is a waste of money. The "computer" is programmed to run whatever octane your owners manual prescribes. Unless you have a tuner it will not properly adjust for the higher octane. I am an Instrument Technician.
The manual recommends premium for heavy towing. And it uses an aggressive OEM knock sensor calibration, so it does add power as conditions allow based on the amount of octane. Octane is more useful at lower altitudes than high.
Not using it will likely negatively affect power and mileage. Nothing more.
And I'm a caveman, does that make a difference?
