"Can I use Persil laundry detergent in a front loader?" and "Can I use Persil in a top loader?"
For all those that have asked, the answer to both questions is a resounding YES! In fact, Persil detergent in typically recommended for use in high efficiency, front load washers, and for good reason. Most common flavors of Persil are classified as low suds detergents - specially formulated, highly concentrated, powders and liquids developed to clean your clothes efficiently, utilizing less water and detergent than conventional top loaders, while producing a low amount of suds so as not to damage your shiny new (and pricey) front loading HE washer. As most of us know, the primary market for Persil laundry detergent is outside of the United States, where front loading washers are much much more common than their top loading counterparts.
That brings up the question of using high efficiency detergents such as Persil in top loaders. After all, if they are formulated for use in front loading washing machines, is it a good idea to use Persil brand laundry detergents at all in top loading machines? There's two answers to this question; yes, and yes. First off, if you have any form of the standard high efficiency Persil, be they powder, liquid, liquigels, etc. it's typically safe to use one half to one third the standard amount of detergent in your top loader, as the highly concentrated detergent will release just as much cleaning powder as it would had you been using a normal amount of non high efficiency detergent instead. A second option, if you love the cleaning power of Persil but prefer to play it safe, is to look for Persil Top Loader laundry detergent. Commonly sold in Australia and Asia, this form of Persil give you the same super stain fighting and cleaning powers of standard Persil detergent, but specifically formulated for top loading washing machines. The best of both worlds in one bottle!