Complete Oil Specifications
Toyota’s owner’s manual for the 2021 Tundra (3UR-FE) calls for Toyota Genuine Motor Oil or an equivalent ILSAC GF-5 multigrade engine oil, with a recommended viscosity of SAE 0W-20. Oil capacity is 8.5 qt (8.0 L) with the filter and 7.9 qt (7.5 L) without.
Can I Use 5W-20?
Only as a stopgap. Toyota calls SAE 0W-20 the best choice for fuel economy and cold starting. If it isn’t available, SAE 5W-20 may be used, but it must be replaced with 0W-20 at the next oil change.
Checking the Level After a Change
Toyota’s capacity figures are a reference for a drain and refill. After refilling, warm up and turn off the engine, wait more than 5 minutes, then check the level on the dipstick.
What We Couldn’t Confirm
- Oil change interval. Toyota publishes it in the separate Warranty & Maintenance Guide rather than this owner’s manual section.
- OEM oil filter part number and drain plug torque. Neither appears in the owner’s manual section used here.
FAQs
What oil does a 2021 Tundra take? Toyota Genuine Motor Oil or an equivalent ILSAC GF-5 multigrade engine oil in SAE 0W-20.
Can I use 5W-20? Only if 0W-20 isn’t available, and it must be replaced with 0W-20 at the next oil change.
How much oil does it hold? 8.5 qt (8.0 L) with the filter; 7.9 qt (7.5 L) without.