<strong>Yahoo Message Number: 94966</strong>I just got my EOA back and Cat said my copper and sodium are up with 2600 miles on the oil, Mobil 15w40 5/13 copper 8----2020 miles 4/14 copper 73 -----2600 miles 5/13 sodium 10---2020 miles 4/14 sodium 34-----2600 miles Total miles 20,900 <br/>Here is what they said<br/><br/>The levels of copper and sodium are high. Readings indicated the possibility of...