Subaru 2001 Impreza Owner's Manual page 263

3. Slowly pour the coolant and fill to the radiator filler neck and to the
reserve tank's "FULL" level mark. Do not pour the coolant too quickly,
as this may lead to insufficient air bleeding and trapped air in the sys-
tem.
Coolant capacity: 6.2 US qt (5.8 liters, 5.2 Imp qt)
Rubber gaskets
4. Put the radiator cap back on and tighten firmly. At this time, make
sure that the rubber gaskets in the radiator cap are correctly in place.
5. Start and run the engine for more than five minutes at 2,000 to
3,000 rpm.
6. Stop the engine and wait until the coolant cools down (122 to
140 F [50 to 60 C]). If there is any loss of coolant, add coolant to the
radiator's filler neck and to the reserve tank's "FULL" level.
Filler neck
Fill up to here
OM-H0197
HG0115
Maintenance and service
"FULL"
level mark
"LOW"
level mark
– CONTINUED –
HG0114
10-15