I don't know that I would call it easy.. It has certainly been a learning experience for me. I have been running Veggie since March, and while the conversion is easily done if you are at all mechanically inclined and understand basic machinery. The time and effort involved with the processing and finding the oil is what takes the "ease" out of the equation for me.. Luckily I have an understanding wife whom doesn't mind all the oil stains, dead grass, and barrels of oil under the porch. It is time consuming, but it is also nice running cheap or free fuel as you drive past a fuel station asking 4+ dollars a gallons..
1999 F-250 7.3L Diesel