The most obvious thing to check when a 1991 Oldsmobile Cutlass Supreme won't start is to make sure that the vehicle has gas. You should also check the battery. If the car clicks when you try to start it, it is likely the alternator.
Check on the passenger side firewall may have to remove plastic cover
check your drivers door specification decal fotr the tire size.
It will, if it causes the fuel mixture to be out of range.
From what I have read at Automotix.com , I will say yes it will. You also have other options of engines from Chevrolet, Buick, as well Oldsmobile that fit the Cutlass Supreme. The engines vary from V6 3.8L, 4.3L V6, 5.0L V8, to 5.7L V8, depending on what year and transmission type your Cutlass Supreme has. Check with some of the Remanufactured engine websites, or talk with a shop in or near your area that rebuilds/overhauls engines for american cars. There are 2 versions of the Oldsmobile 307, a 140 HP version that can be installed in regular Cutlass, and a 180 HP version that came with the Hurst/Olds Cutlass Supreme. I don't know if these engines are interchangeable between the standard Cutlass Supreme and the Hurst/Olds Cutlass Supreme. You may have to talk with a engine rebuilder shop tech person about that. Hope this helps.
You can find a detailed vacuum hose schematic for a 1984 Oldsmobile Cutlass Supreme in the car's owner's manual. You can also check with local auto stores.
The battery light is letting you know that the alternator is not charging the battery. Check to see if alternator is any good. Also check to see if belt is hooked up.
Probably because you need to check the engine.
Possibly burning oil. Check compression.
You add fluid at the same place you check it.
Add it the same place you check it, through the dipstick tube. Check the level with the transmission hot, in park, engine running, on level ground. Use only Dexron fluid. Do not overfill!!!!!
Check for a vacuum leak either under the hood or under dash Check the operation of the vacuum actuated motors under the dash Check the operation of the selector switch in dash Defrost is the default position for this system
Check your RPO codes. If it has K60 then you have a 100 amp alternator.