FA20E and FA20F Subaru Engines
The cooling circuits for the FA20E and FA20F engines had a greater on cylinder head cooling relative to the EJ engines. According to Subaru, fuel efficiency was improved by reducing coolant flow volume and retaining higher oil temperatures at the cylinder block walls. Furthermore, the coolant flow rate within the cylinder head was increased and improved cooling around the spark plugs and ...
![whatsapp](/images/whatsapp.png)