Well, I hate to buck the trend here, but.................
use whatever you like, as they are all basically the same......
I have always favoured redex..... don't ask me why.
And I have (in toyota 4x4) put it neat into the fuel filter (when changing it) and yes it smokes for a while, but diesel engines (and their ancillary componants) are designed to burn oil, and will cope with most of the generic cleaners, as it's designed to disolve carbon deposits, and clean injectors.
I have no problem in using double the dose, just gives a more concentrated mixture, and so will clean faster.
If it's the first time, then a large dose may help, then you can follow the dosage instructions for regular maintenance cleaning.
So, you pays your money, and you takes your choice...... as in all things in life...
