Why GM Service is so important!

Correct Oil Viscosity and Good Maintenance


It is imperative that only the vehicle manufacturer’s recommended oil viscosity be installed in a vehicle equipped with variable valve timing. The GM applications reflect 5W30 and. We have encountered a situation whereby 20W50 oil was installed by a lube tech who was unfamiliar with this system. Days later, the vehicle was towed to us and the repairs were not covered under warranty. The diagnosis was a lengthy process, as the Check Engine Light was illuminated and multiple codes were stored in memory. Once the technician determined the performance condition occurred following a routine lube service, he went straight to the problem. Draining the crankcase and installing the correct viscosity oil returned the system to normal operation.The lube shop was responsible for the dealer’s diagnostic charges, plus a new oil change. So please let Giant Chevrolet Service all your vehicles and save you the headache of an unneeded repair