Because that SOHC Aint cutting it nomore and your Civic is wanting you 2 B16 motor swap it!! :)
4 quarts
It should be 3.5 to 4 litres of oil
2.85 quarts
4.5
Honda civic 2003 -what is the best engine oil for hot weather?
4.2 Quarts. But 4 is fine.
3.5 quarts with a oil/filter change.
The 2002 Honda Civic (all trim levels) can hold up to 4.4 quarts or oil. So, it's best to put at least 4 quarts with every oil change.
The 1995 Honda civic dx transmission does not come with oil filter.
capacity with a new oil filter is 3.8 qts. 1996 Honda civic ex
A 2003 Honda civic si needs five quarts of oil.
Take it to a Honda Civic garage / mechanic.