Last Sept 2008, I brought my brand new Silverado to Grease Monkey for a complete Oil & Filter Change. I bought the most expensive filter and oil in the market - Mobil 1. Last Dec, my son noticed oil spots under my truck. Being a brand new vehicle, I took it to the dealer Bender Chevrolet to have it looked at. To make a long story short, I had to bring it again to the dealer just today to check again on the oil leak. According to the Service Manager- Richard of Bender Chevrolet in Clovis; his expert technicians found out that the Oil Filter... read full review »