I know no one is sure what year our trucks became bio resistant in relation to fuel parts. I would like to know who is running a truck on high concentration of bio or veggie/blend that is 95 or older. How long have you been doing it and what problems have you discovered in respect to these fuel related parts?I want to make the switch to B100 in my 94 but I am hesitant to do so as this is my everyday driver and occasionally I will drive it 1200 miles or more in a couple of days. So far I have run about 5 tanks that have been B60 or better with no problems. Thanks for your input.