Simple answer, as Ritchie says, is ALWAYS buy the same brand.
More over than that CST is the correct engineering "standard" for measuring oils and is a linear scale where as WT is an arbitrary scale, not always linear and different brand to brand.
With that in mind I will ONLY use CST graded oils now.
Which do I use? Kyosho or Core RC, both seem very close if not identical and more importantly bottle to bottle both are very consistent.
|