Fuel Injectors

[Arijit]

Do fuel injectors of Trailblazers require periodic cleaning?

[Shabir]

Not really, unless you have some issue in fuel delivery then yes try the fuel injector cleaner as fuel additives. If still have some issues, then i heard that Bosch on SZR do clean injectors and service them. One of my friend got them cleaned for his Mitsubishi car.

[Arijit]

Thanks Shabir, any idea how effective the additives are?