I would use a synthetic 20/50 motor oil
20w50 oil in the motor
all odyssey's take 4.8 quarts of oil
5w30
The oil drain plug on a 2003 GMC Yukon is underneath the motor. It is on the same side of the engine compartment that the battery is on.
The Correct Motor Oil for this vehicle is a 10W40 Synthetic Motor Oil
5W30
3.5 QT
5.5 Litres. Same as conventional motor oil.
0w-30 or 5w-30 may use 0w-40 synthetic motor oil
Six
mobil 1 5w30 full synthetic
Motor oil drain plug is on the bottom of the oil pan. Oil pan is on bottom of motor. Bottom of motor is under car.