It should be listed on the oil fill cap and for sure in the owners manual. Honda recommends you use SAE 5w-20 weight oil. Any mjor brand is fine. If you have over 100,000 miles on the odometer use a High Mileage oil.
An engine diagram for a 2001 Honda Civic is available through a 2001 Civic factory service repair manual. The manual shows how to properly troubleshoot the engine and it's components.
owners manual.....sometimes under the hood.
The engine size of the Honda Civic is 1.8 litres.
The 2009 Honda Civic has an inline 4 engine.
The 2007 Honda Civic has an inline 4 engine.
The 2001 Honda Civic has an inline 4 engine.
The 2004 Honda Civic has an inline 4 engine.
The 2005 Honda Civic has an inline 4 engine.
The 2014 Honda Civic has an inline 4 engine.
The 2006 Honda Civic has an inline 4 engine.
The 2011 Honda Civic has an inline 4 engine.
The 2010 Honda Civic has an inline 4 engine.