There are two engine block drain plugs. One is just above the oil filter and to the right a little. And the other is below the upstream O2 sensor. I'm not sure if all of the plugs are the same size, but I used a 14 on for my 2001 Malibu. Hope that helps.
Also, the best way to get to the drain plug near the exhaust pipe and O2 sensor is to remove the drive belt tensioner pulley and remove the plug from above and not below.
radiator antifreeze coolant.
Chevy did not build a Malibu in 1995.
Find the source and repair it.
in the over flow tank
You may have a blown head gasket. This needs to be repaired before you drive the vehicle or you can blow your engine.
any vehicle that is water cooled and has a radiator needs antifreeze.
How much antifreeze does a 1998 chevy mabilu ls take
It calls for dex-cool.
engine size
Where is the coil pack located on a 1998 Chevy Malibu with 2.4 engine
97 on up uses dex-cool coolant in its v6 engines
Dex-Cool