Find out the engine size. my guess would be 5 or 6 quarts, but might depend on the engine.
look here http://en.wikipedia.org/wiki/Oldsmobile_88#1992.E2.80.9399
then lookup engine. engine size is often displayed on air cleaner or somewhere under the hood.
once you get the right engine it will say. usually listed in the back of users manual. you could seach online for your manual if you dont have it.
you could try 4 quarts check level on dipstick, add another quart check, then add another or another 1/2 quart.
good luck.
5 US quarts with a filter
SOURCE: location of ICM in 1992 olds delta 88
It is the module below the coil pack. The coils are plugged into it.
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