Originally Posted By: dailydriver
I'm curious about the starting TBN.
I used this in my LS1 when it first came out, for a winter OCI.
But the oil pressure was so unstable when using it (the ONLY oil which ever did this), I dumped it out for the current fill.
I don't know if it was the low SAPs or something else, but my engine did NOT 'like it'.
It is Low-SAPS. In the U.S. should be used only with diesel engines, in Europe gasser can do it too (lower sulfur in gas then in the U.S.).
I am not sure it is low TBN that cause this. Euro 0W30 oils are pretty thick, almost W40 oils. Maybe that is the reason