The Toyota Tundra needs an oil change every 5k miles.
Oil Type: SAE 0w-20, SAE 5w-20
4.6 and 5.7 engines have 7.9 qts oil capacity.
The new 3.5L 6-cyl takes 5.7 quarts.
Oil pan drain plug tightening torque: 30 ft/lbs
The older 4.0L 6 cylinder uses 5w-30 4.8 qts.
Oil types can be mixed if needed.