5 w30
The oil pump is located on the bottom of the 2003 Silhouette engine. The oil pan has to be removed to get to it.
4.5 Quarts of oil.
4.5 quarts
I have a 2002 Oldsmobile bravada and we changed the oil today it took about 7-8 quarts.
It is either an intake gasket, or head gasket most likely...bring it in to a mechanic.
Push the odometer trip reset till you get to "oil" then press and hold down till it reads "100"
20 ft pounds should do it. too much and you'll strip the theads
if it has a 3.1 or 3.4 it is located between the engine and the trans just above the oil pan.
Bottom of the engine
The recommended oil for an Oldsmobile Alero is SAE 5W-30 oil. If you live in a state that does not get freezing temperatures, 10W-30 is acceptable.
the 4.2L takes 6.6 litters or 7 quarts of oil