I have a 91 calais. Oil filter is located in the oil pan. Just remove the large diameter plug, located next to the drain plug, and pull filter out with a pliers
under car in the back by gas tank
If a 4 cyc, on the passenger side of the engine, seen from the top.
It does not have a cabin filter.
None
It should be inside the air cleaner housing.
If more than 1 gas filter were are they located on the 91 Cutlass Oldsmobile?
Oldsmobile Cutlass Supreme
The fuel filter is located under the vehicle, between the rear axle and the fuel tank.
The oil sending unit on the 1994 Oldsmobile Cutlass Supreme is located on the top of the engine compartment. It is directly above the oil filter.
The freon input point on a 1994 Olds Cutlass 3100 V6 is located behind the air filter box assembly.
It is located by the rear axle behind the fuel tank.