oops, late night post. Yes, 50ml per quart.
I have two conflicting goals beside the fact that I already bought the Moibl1 0W-30 on closeout at target- 1)increase HTHS and 2)not affect the low viscosity flow too much.
I like the winter flow of Mobil1 0W-30. Mixing Mobil1 15-50( which I have done during the summer) probably does increase the HTHS but raises the low temp viscosity somewhat(and I have thought of using 0W-40 Mobil1 to keep a 0W oil). The #132 probably does also increase the low temp viscosity, so perhaps a wash. But the #132 has add more moly, a surface treatment and antimony beyond Mobil1. So I lean toward the use of #132 plus I have some bottles already.
By tomorrow, I should have a case of Mobil1 0W-30R at the doorstep from George,so as someone suggested I could just use a different oil instead of the 0W-30 regular Mobil1. But the HTHS of Mobil1R is not given yet known. It may just be more AW additives.
Hence the question, can I get an increase of HTHS with the #132 brew or will I need to go with the Mobil1 racing oil or some other at least for winter use.
If I am going to have to pay over $8 an qt. with shipping for Mobil1R, I will just use it instead of RL or Amsoil. I do use RL lube in the trans, but not convinced that RL motor oil or Amsoil is any better than regular Mobil1 for the price delta - please not trying to start a flame, just my opinion.
The Mobil1 racing oil is still an unknown, but I do trust EM to deliver a quality product.
Also, the engine that I am asking about can use up to a 50 vis, but the recommended weight is 10W-30, so I am not to concerned about pushing into a low 40W plus I don't think the thin Mobil1 will really get there, since someone only got a low 40W with thicker Amsoil and 8oz of #132.
[ February 04, 2004, 11:45 PM: Message edited by: OilAnal ]