2011 GMC Sierra
Mileage
69,398
Service Date
10/26/2023
Services Performed
- Oil filter Disposal
- Lubricate and check chassis. Change oil and oil filter. Check air filter and breather filter. Check all fluid levels and tire pressures.
- Inspect hoses and clamps. Pressure test cooling system. Flush engine, radiator, and heater core in both directions. Bring antifreeze to -35 degrees. PH balance coolant to between 9.8 to 10.5. Check thermostat and electric cooling fan operation. Chec
Kevin B. gave our service a 5 star review on 10/26/2023
