3.3liter or 3.48 qt engine oil
Including filter; the oil capacity for a 2WD, 2000, Nissan, Frontier, 4cyl (Ka24de) is 3-3/4 quarts. Straight out of the Haynes manual.The 4WD model, also including filter requires 4-1/8 quarts.
3.75 quarts
About 3.5 US QTs
4 quarts
If the 2000 Nissan Frontier has fewer miles on it, it is recommended that the oil weight should be 5w30. If the car is more miles on it, the recommended oil weight should be 10w30.
It is 3 3/4 quarts of oil. It is a little more if you change the filter. It is recommended you have the oil changed every 15,000 miles or so.
A 2000 Nissan Frontier 3.3 V6 will need approximately 5.5 quarts of oil for an oil change. The recommended oil is 10 W 30.
3.8 quarts of oil
It says in the owner's manual its 3.5 quarts.
3.5 qts with filter
According to my Haynes manual it's 3.6 qts
4.5 liter