The oil and filter shall be changed on every car and truck to 1 Ton on a 5,000-mile interval or every 4 months whichever occurs first. Contractor shall utilize a major brand (example: Castrol, Valvoline, Quaker State, Mobil) semi-synthetic 10W-30 oil unless otherwise specified by the Manufacturer, make and model of truck/vehicle and a major brand oil filter (example: AC Delco, Motorcraft, Fram, Purolator). At every oil change the Contractor shall perform the following lubrication services: lubricate all joints equipped with grease fittings or plugs, lubricate all body mounts and rubber mounts and bushings with an approved lubricant to eliminate squeaks and binding, check and top off all fluids, including washer fluid, not changed. At least once per year the Contractor shall also lubricate all lock cylinders, door, hood, and trunk hinges and inspect all weather-stripping.
