The fuel filter location on a 1986 Oldsmobile Cutlass depends slightly on the engine (V6 or V8) and whether it's a front-wheel drive or rear-wheel drive model. However, it's generally located
within the fuel tank on these models. This means it's not a replaceable filter in the traditional sense; the entire fuel pump assembly, which includes the filter, must be replaced as a unit.
You won't find a separate, easily accessible fuel filter like you might on some other vehicles. To access it, you'll need to drop the fuel tank. This is a more involved job requiring mechanical skill and appropriate safety precautions (disconnecting the battery and relieving fuel pressure).
