For 1990-2009 cars

1. Clean the heat exchanger-to-oil filter housing sealing surfaces.
2. Install a NEW gasket.
3. Install the heat exchanger (1) to the oil filter housing.

Caution: Refer to Fastener Caution in the Preface section.

4. Install the 6 bolts (2) and tighten to XXXN·m (XXX lb in).
5. Clean the oil filter housing-to-thermostat housing sealing surfaces.
6. Install 2 NEW gaskets.
7. Install the oil filter housing and the 5 oil filter housing bolts (2) and tighten to 25N·m (19 lb ft).
8. Install the thermostat housing coolant pipe (1) to the oil filter housing.
9. Install the 2 thermostat housing coolant pipe bolts and tighten to 8N·m (71 lb in).