Tide tests all detergents in 75 degree water because that is what 2014-2015 washers deliver when set to 'Warm'. Most new washers dumb-down 'Hot' water to around 100-105 degrees, as did my 2013 Frigidaire Immersion Care. Fortunately, my 2010 Frigidaire front-loader still delivers tap-temp hot water. This is why I wouldn't consider buying a washer without an internal heater anymore. At least you can get truly hot water using Allergy, Steam, or Sanitize options.
I have an online subscription for CR, as well. I like it well enough to keep renewing, but there's so much more they could offer. The detergent ratings are in two sections; one for HE and a very small one for traditional detergents. I'm pretty sure all the Tide and Persil products in the HE section are, indeed, HE.
Add my thanks to the list, Launderess, for providing everyone a link to CR's free section!
[this post was last edited: 6/5/2015-15:17]