Thread: Diesel injector cleaner additive ?

Something is up with my 2003 Mazda Bounty.

On cold start I get rough idling, engine vibration - almost like it is missing ? Puff of white smoke. Once the engine is warm, all good. Can't say I am feeling any loss of power etc. It is a 2.5 turbo, not grunty at the best of times, affectionately known as the "land slug" :-)

Once the engine has warmed up, no smoke, idling fine. Restart after taking dogs for a walk etc is fine, so it looks like it is limited to cold start.

Glow plugs changed recently, that was the first suspect - ute has done close to 200K.

Dirty injectors ? Is it worth trying injector cleaner additive to the diesel ? Any particular brand worked better for you ?