I've never heard of let alone seen a "HiMi" Techron.
For the same price it has less PEA than the regular Techron concentrate. I think I'll pass.. especially since the BOGO is also good for the regular Techron, which I've already picked up 2 of the 12oz bottles from AZ using a gift card I had.
I still have the Oreilly's $5 off $10..so I'm going to see if I can make a good deal even better. ($5 for a 12oz bottle of Techron concentrate is already a good deal)
I picked up 6 bottles of the Techron FI cleaner this summer for .30c..so that was a steal.