Engine? 3.1L V6 are notorious for intake manifold gasket leaks. get it fixed soon or your engine is at risk. My Lumina had oil in coolant and coolant in oil. If there is tan foamy stuff on oil fill cap, coolant is in oil too.
most likely the head gasket is bad. there will also be coolant in your oil.
A 1997 Chevy Lumina has the following oil capacities: 3.1L V6 engine: 4.5 quarts 3.4L DOHC V6 engine: 5.5 quarts
All of it. Generally 4.5 qts.
which plug? oil, coolant, vacuum, hydrolic, or spark?
unfortunately, that usually means a head gasket problem. there are channels throughout the block and head that allow coolant to flow through and cool the engine. where the head and block mate, the only thing between these passages and your cylinders and therefore oil, is you head gasket. my 95 lumina blew it's head gasket, which dumped the coolant into the oil. I had checked the oil that morning, and it was good to go. when my engine started overheating, the first thing i checked was the oil, and it was full of coolant. sorry to be the bearer of bad news.
Drain the oil from your 1996 Chevy Lumina oil pan. Remove the oil pan retaining bolts. The oil pan will come off.
The oil pump is found on the bottom on the 1995 Chevy Lumina's engine. It is mounted on the front of the crankshaft
Says it on the oil cap.
If your oil light's on, you should have added oil a long time ago. Check your oil and see if it even registers on the dipstick.
Upper intake manifold plenum leak/crack most likely. If its blowing out coolant then you probably have a bad head gasket.
Drain the oil from your 1995 Chevy Lumina oil pan. Remove the oil pan retaining bolts. Remove the oil pump retaining bolts. Reverse the process to install your new oil pump.