Civic L4-1.7L CNG (2003)
Coolant: Capacity Specifications
Engine Coolant Refill Capacity (including the reservoir capacity of 0.4 L (0.4 US qt):
M/T ....................................................................................................................................................................................................... 4.0 L (4.2 US qt.)
A/T, CVT ............................................................................................................................................................................................... 3.9 L (4.1 US qt.)