I have a '91 350SD with 162,000 miles on it that I converted to run on vegoil about five thousand miles ago. It seems to run very well and is not burning any oil between 3,000 mile oil changes. I have some things that I would like to fix on the car, anticipating that I will be driving it for quite some time. However, I know about the rod bending problems with the 350's. If it has gone this far, do I have one of the good ones?