Originally Posted by dogtrainer22
It might be that the TRD Off Road package has a stronger built engine?
200 proof ethanol will absorb water from the atmosphere and become 195 proof ethanol. The refineries produce 200 proof ethanol and then (before the water is absorbed) blend with 15 percent regular gasoline. Once ethanol and regular gas are blended, any water that enters the mix will not separate out into an individual layer; the gas station ethanol blend stays homogeneous in your tank while waiting to be burned by the engine.
Be careful if you decide to switch to E45 - E70 by first transitioning to more ethanol gradually to allow the fuel system of your vehicle to slowly clean itself; too quick a transition will result in a clogged fuel system.
All 2005+ V6 engines are the same, there's no difference between the sr5/sport/off road