LoneRanger, I see your point, but I've tested a variety of oils already and none held
up to, or past, 4000 miles without the viscosity shearing down to the point that the
lab gave it a yellow caution flag. At this point, I'm just experimenting with diff
oils to see what works best, in terms of viscosity holding up, mainly to see if I can
get past the 4000 mile mark. Even plain ole Dino Rotella T held up fairly well to
3000, and with a quart of 20-50 thrown in, Amsoil and Valvoline Syn makes it to 4000 easily. Castrol Blend, even with the quart of heavier oil, was the big loser as it
[censored] out at 2000 mi. I'm anticipating that the current fill of Motul 7100 will do
OK at 4000 and was curious to know if the 300 would likely be a better choice as its
only a few bucks more per 4L. I do like the RED oil....it shows up better on the dip stick.LOL.