Originally Posted by
jrciii56
I would like to post a copy of my UOA. but cant figure it out. I run Schaeffer 7000 5w20. 10,000 miles interval. All wear metals are in the sinlge digits execpt the iron are 21ppm. The base oil viscosity has not even began to break down. There is only one way to predict the life of oil and that is with uoa's. You can't go by feel, smell, or looks.
+1 on the UOAs. Only way to really know if your oil is in good shape when you change it. Good insurance to figure out if everything is good to go with the engine and how long to wait between changes. Especially with this new EB engine.
On one of the GT500 forums a member had extremely high aluminum content in the UOA. Took it into Ford and they ended up putting on a new head. Rare occurrence but he caught it way early.
I will be switching to a full synth oil for the EB. Probably Royal Purple as I can get it readily.