oops, late night post. Yes, 50ml per quart.
I have two conflicting goals beside the fact that I already bought the Moibl1 0w30 on closeout at target- 1)increase HTHS and 2)not affect the low viscosity flow too much.
I like the winter flow of Mobil 1 0W-30. Mixing Mobil 1 15w50( 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 Mobil 1 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 Mobil 1. So I lean toward the use of #132 plus I have some bottles already.
By tomorrow, I should have a case of Mobil 1 0W-30R at the doorstep from George,so as someone suggested I could just use a different oil instead of the 0w30 regular Mobil 1. But the HTHS of Mobil 1R 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 Mobil 1 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 Mobil 1R, 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 Mobil 1 for the price delta - please not trying to start a flame, just my opinion.
The Mobil 1 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 10w30, so I am not to concerned about pushing into a low 40W plus I don't think the thin Mobil 1 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 ]