Hello po.

Im currently Diy’ing my coolant flush for my lancer gt 2.0 (2007) 4G63(NA) engine. But my problem is when i drained the coolant from the lower radiator hose, it just let out half of what its supposed to. The whole system should have let out 5.5L of coolant more or less but i only got about 2.5L. So my question is, is there any other drain outlets that i can open in the block of this engine to let out the other half of the dirty coolant? Thanks sa tulong at insight na mabibigay.