HELLO,EVEYONE.LATELY I HAVE BEEN SEEING POSTS ABOUT BAD CAMSHAFTS. SO I START TO THINK WHAT IS THE CAUSE? VAVLE SPRINGS ? OIL? WHAT! IN THE AUTO INDUSTRY ,EVERYTHING IS ROLLERIZED. AS OF THE EARLY 1990S. SO THE OIL PEOPLE FOLLOWED WITH REDFINED OIL. A FRIEND OF MINE AND I. WHERE TALKING ABOT THIS. HE SAID SINCE ALL MOTORS ARE ROLLER NOW THE OIL HAS CHANGED AS WELL. HE WORKS FOR A G.M DEALER. THEY HAVE AN ADDITIVE FOR OIL REG-AND SYN OILS. MAYBE THIS (ADDITIVE OR LACK OF) IS HELPING TO HURT VAVLE TRAIN COMPONENTS? ALSO I HAVE TO WONDER; ABOUT VAVLE SPRING. WITH 10 TO 20 # MORE SEAT PRESSURE. WOULD LIKE FEED BACK ON MY?? THANK YOU ALL. FRANK.