yuhjr`e
Never mind, dog stepped on my keyboard.

 

It's fine to run if you have a 5.0 FF pickup. The people that say to stay away from it either are from the part of the country where it's not available like the first few posts, or they work for big oil.

 

IF it provided a significant cost savings coupled with significant increase in MPG with significant increased performance….pick any two, then I’d be more favorable toward it. As it is, I see nothing of benefit over gasoline that would cause me to want to even put it in my truck.

The owners manual DOES instruct to run a tank or two with the mix of the two, before switching over totally from one to the other. That tells me something, not sure what, but I surmise from that that switching and going “cold turkey” could cause issues. Dunno…
As it is, I do admit I’m biased against it based on past history including outboard boat motors.
Regardless, it isn’t available in my area anyway.

Heck, I can’t get used to having no gas cap or parking brake pedal!

 

You’ve left out the most logical reason to stay away from it…..

 

And that is?

 

as discussed already in thread, it is almost always (on recent/current prices), a negative return on running it ($/mile).

 

If you want power, then its the best option. You lose maybe 2mpg. But want to have more power, and its local, its fine.

 

As mentioned "flex fuel" is build into normally aspirated engines only and can not be simply added. I you have an Ecoboost the ethanol is limited to 20% or slightly over and Ford recommend no more than 15%, this is due to the extra combustion preasures of turbocharging.High ethanol can be specifically tuned for in Ecoboost models but then you should stay with the tuner's recommendations. All these Ford engines have from the factory a limited amount of flexibility due to the variable octane tuning used, the engines both NA and Ecoboost will adjust the tuning in the ECU for 93 down to 87 octanes and up to 15% ethanol.

Personally my 2.7 Ecoboost likes 93 octane 10% ethanol blend best both for mileage and power. It will run fine on 87 octane but with noticed drops in power and mileage. KM

 

This really depends, I find its about the same cost wise. I get several miles to the gallon less milage but where I live its around $1.50 a gallon cheaper than 93. If your comparing it to 87 it probably is more expensive but I never run 87 in my truck anyway.

 

of course it depends. My statement already already referenced it depending on actual/current prices.

and yes, if you only run 93, that also obviously changes the analysis/comparison for your specific situation.