Might do it myself if it's going to cost $300 :eep:

A standard service which would include oil and filter change
with them checking the condition of brakes, and other fluids, plugs, filters, etc, etc should be less than $130, but it should be a thourough "service"
if other stuff needs replacing then it'll go up form there.

but DIY

Oil: $35, Magantec 10W40
Oil Filter: $15, Subaru
Spark Plugs: $3 each, NGK Bkr6E
Air Cleaner: $30 Subaru
Fuel Filter:  $30 Subaru
Upper Engine Cleaner: $15 Subaru

Beer: $40, Cascade Lager