Originally Posted By: AutoCare1
Ford refuses any warranty claims when using extending oil change intervals with the MicroGreen oil filter. MicroGreen refuses to accept any liability for a blown engine that was on the MicroGreen oil filter program. Don't do it. They have a great sales pitch, but run the other way when something goes wrong.
By the way, could you give us a little more description on how and when the engine failed, did you find sludge in it, how many miles and what oil change intervals where you running?
Suppose it's too late to do a UOA? Might help you with a claim against the filter company or Ford.