I just changed the lube baselining the Taco using Redline. FWIW, seems Redline changed the color of MT90 sometime in the past few years. I had one bottle of old stock from probably 2008 which had a faint red tint and the current stuff no longer does, it's just gear lube yellow like the regular 75W-90.
'91 Toyota Pickup
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
“Anyone who believes in indefinite growth in anything physical, on a physically finite planet, is either mad or an economist.” -- Kenneth E. Boulding