Liability and Alternative (e85) Fuel

i have a friend who was an auto mechanic in brazil; he now owns a sucessful garage in los angeles..... i approached him on doing (the simple) conversion to e85.... he told me that his liability premium would be "astronomical". do you think aramco owns the carriers or vice-versa ? he told me to try 2.5 gallons of e85 in an almost empty gas tank to see if my injectors would adjust to the mixture without a new chip. he offered to help but i was on my own NOTHING in writing.,,,,, ><> phil