Redex system cleaner & Redex DPF cleaner

My hippo (TD4 sports 05 plate) approaching 120k and I put some Redex engine cleaner into a full tank and given it a blast as I often do. So theoretically this should keep the injectors happy. On this occassion the exhaust smoke seems excessive so I am thinking of putting some Redex DPF cleaner into the tank as well. Is there any reason why I should not add both to a full tank at the same time? Or does it not make any difference? Many thanks. John p.s. Should a 'quick blast and floor it' up the M5 help to clear any deposits in the exhaust or will normal running be just as effective?

I’d be surprised if an 05 plate has a DPF fitted.

Your 05 won’t have a DPF.

Injector cleaner additives are snake oil, any smoke you may or may not have will be unrelated to a couple of hundred mls of jollop added to 60L of diesel.

Thanks Johnlad and Dartmoor Navigator.
I live and learn !

Use Comma Diesel Magic. It's about the best readily available diesel fuel system cleaner.

However excessive black smoke is down to lack of air in the combustion cycle, so you want to be looking at air filter, boost pipes, black goop in the inlet manifold and split vacuum pipes.