The HT/HS is going to be nearly identical between those two grades with that ACEA Sequence.Think I’m going to settle for some castrol 5w30 euro since it’s a3/b4 rated. I want to just use Quaker state euro 5w40 in the tundra since I use it in the Lexus, but I’m not comfortable with doing that at the moment. Want to stick with the 30wt grade even tho hths is more important than the claimed grade, but it’s just peace of mind