PharmDLee

This just happened to my 2020 Silverado that I purchased in February of 2020. Granted I put 130 K miles on my truck already, but like most posts above all 4 connections were leaking on the oil coolant lines. We recently had negative 28 degrees here in Wisconsin last month and shortly afterwards is when I started noticing the oil spots on the driveway. When I brought this up to the GM guy, he argued that this was normal maintenance after that many miles. I am sorry GM, this is a known issue. Oil Coolant lines are not on the maintenance schedule like a serpentine belt or transmission fluid change. I have a 2017 Subaru and 2015 Honda Pilot, both are older and have more miles, neither has leaked oil. Honda and Subaru have it figured out. Trucks are not suppose to be leaking oil at 6 years of age. IF GM thinks that it is leaking oil is a normal thing after 6 years and 130K miles maybe they should hire some new engineers. I totally agree with the above statement, this is a design flaw. It would be nice if GM could own up to that, and fix the issue.