is induction service needed on a 2002 subaru impreza with 60000 around town miles
Get whatever is required at 60,000 miles.
Sounds like transmission flushes and fuel injector cleaning - fluff that does little to nothing but empty your wallet.
"induction" service? 13 years is a long time for everything. I'd simply start with assuring that ignition (ins cables) are up to snuff, and all fluids and filters replaced. If poor idle results THEN spray-clean the throttle body assy. If still no good a power-clean of the injectors may help. The 60k service is useless here except for fluids and plugs. By now you may also need an O2 sensor (or two!), but only if CEL's so indicate. And do NOT ignore a trans drain and refill (NOT "flush").
By the way, 60,000 miles on a 2002 is nothing.....it's more years than mileage with your car. How does it drive and look?? Condition on used cars is EVERYTHING.
If I were you, I'd designate this as my "city car"..... It's getting pretty old to take this out on the open road... Even though it has "extremely low miles" it's 15 years old... anything could happen.
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