Mostly the text below was copied and pasted from the official Toyota Manual.
Engine oil selection
Oil grade: ILSAC multigrade engine oil
Recommended viscosity: For 5.7 L V8 (3UR−FE) engine, SAE 5W−20 or 0W−20 engine oil may be used. However, SAE 0W−20 is the best choice for good fuel economy, and good starting in cold weather.
The 5.7L V8, uses 7.4 quarts of 0W20 or 5W20 oil. It is approximately 7 liter.
Resetting the engine oil maintenance data
The engine oil maintenance data must be reset after replacement of the engine oil.
Reset the data by the following procedure:
1. Turn the ignition switch to the “ACC” or “LOCK” position with the trip meter A reading shown. Mode names are shown right on the knob under the steering wheel. (For details, see “Odometer and two trip meters” on page 186 in the Manual.)
2. Turn the ignition switch to the “ON” position while holding down the trip meter reset knob. Hold down the knob for at least 5 seconds. The information display indicates “MAINT REQD RESET MODE COMPLETE”, the master warning light turns on and the tone sounds.
If the system fails to reset:
- perform the above procedure again
- make sure that starting position is "trip A", not e. g. "trip B" etc. We can switch it by single pressing the knob on the dashboard.