the firestone tire stores in our neiborhood carries Kendall products, including NS-MP. I bought some NS-MP earlier this year.
Is it just those stores in Portland, OR region who does this?
Kendall website does have an estore accepting online orders. Also, their store finder yielded this result.
Marketers Search - ConocoPhillips Lubricants
when I did the same search for OR, it didn't show Firestone stores, however...