I always do what Launderess recommends...
....2-3 tbsp (30-45 ml) of HE powder detergent: Persil or Ariel when I can get it (either visit Europe or ask friends to bring it back), or Tide HE powder for everyday use. Tide HE doesn't seem to clean or wash out as well as Persil or Ariel, but at least it's routinely available.
I was programmed to stay away from liquids by European friends whose dispensers used to gum up with liquid detergents. I use only powders and never have any gummy residue. Hopefully the outer tub looks as good as the dispenser!
Was at Target yesterday to buy some gardening and household supplies. Walked past the powdered detergent section and noticed no Tide HE powder. Well, the shelves were empty above the placard for Tide HE. So either the stuff is flying off the shelves and they can't keep it in stock, or else it isn't being shipped. I hope it's the former.
As a substitute, I could try Sears Ultra Plus HE powder, but I read the specs and learned that it can also be used in toploaders. I am a little reticent to use something that is "approved for use" in both FL and TL machines, since it suggests that the manufacturer didn't really reformulate the product to be low-sudsing and clean-rinsing for HE machines.
Remember, the manufacturers want to sell lots of their product. The recommendations on the packages in the US are insane. Even in Europe they are a little high, but for instance the dosing chart for Swedish Via (= Unilever, same product as UK Persil) recommends 50 ml for "Low soil, low water hardness" as the low end of the dose range, but at least that's more realistic than what Proctor and Gamble recommend for Tide HE.