Originally Posted By: MolaKule
Originally Posted By: Danh
Originally Posted By: buster
Shell was using GTL through mid 2013, which is when you saw the major drop in NOACK volatility. It's definitely a top tier oil, arguably the best overall now.
The PDS for Ultra that shows low Noack volatility (5-6%) is dated May 2012. So GTL presumably has been part of the formulation since at least then.
Again, there is no proof any GTL is being used in PYB.
There are many ways to make a good low NOACK oil without using some esoteric base oil.
Eitherway PYB 5w20, with a NOACK volatility of 6.5 and a TBN of 9.4, looks pretty good against other dinos.
Originally Posted By: Danh
Originally Posted By: buster
Shell was using GTL through mid 2013, which is when you saw the major drop in NOACK volatility. It's definitely a top tier oil, arguably the best overall now.
The PDS for Ultra that shows low Noack volatility (5-6%) is dated May 2012. So GTL presumably has been part of the formulation since at least then.
Again, there is no proof any GTL is being used in PYB.
There are many ways to make a good low NOACK oil without using some esoteric base oil.
Eitherway PYB 5w20, with a NOACK volatility of 6.5 and a TBN of 9.4, looks pretty good against other dinos.