MT-90 is 75w-90. MTL is 70w-80. The descriptions printed on the bottles are identical. I live in a relatively warm location, so I'm inclined to buy MT-90 to put in my g265, yet the guy who seels this stuff says only VW owners buy it. Huh? Also, I've never heard anyone mention or recommend it on this board or any other ... it's always MTL. A call to the manufacturer did not shed any light on the subject. Opinions?