10W30 and always make sure it has the round "For gasoline engines" seal on the front.
10w30 says it right on the oil cap.
A 2005 Buick LeSabre typically requires 5W-30 motor oil. You can use either conventional or synthetic oil, depending on your preference and driving conditions. Always check the owner's manual for specific recommendations regarding oil type and capacity.
4.5 quarts with new oil filter
If your car has 100.000 miles on the engine,it's best to use 50 weight racing oil. My 90 lesabre has 293000 miles I use 10w30. Thicker oil will not flow to the bearings as quick and is not recommended by GM.
Your "operators manuel" should explain which type of oil to use. I have a 96 Buick, LaSabre, that uses 10/30 wt.
3387A
I Use Chicken Oil!
10 30
around 5
The oil filter location for the 2000 Buick LeSabre is on the front of the motor. Look just to the left of the fan belt near the left side of the motor.
Oil level sensor is on side of oil pan.
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