5 qts
Does your 1986 Chevy Celebrity have the 2.5L 4 cylinder engine or the 2.8L V6?
There isn't one. GM uses a different function for cutting off the fuel pump. No oil pressure, no fuel pressure..
The oil pump on a 1985 Chevy Celebrity V6 is bolted to the rear main cap.
Should be 5 qts.
oil pan
The transmission oil goes in thru the dipstick tube.
stp s5 oil filter
If your Celebrity has the 2.5L 4 cylinder engine the oil sending unit is on the side of the block below the intake manifold. If your Celebrity has the 2.8L V6 the oil sending unit is on the lower side of the block next to the oil filter.
The oil drain plug is at the bottom of the sump on the engine pan.
For a new or rebuilt oil pump for your 1988 Chevy Celebrity 2.5L check with an automobile parts store.
Remove oil-filler cap and add oil...
10w30, we used to own an 87, so we know.