Originally Posted By: rogsoil
I have used the RLI 0W-20 x2 OCIs, and RLI 0w30 x1 OCI (second 0w30 run in progress).
I posted UOAs on those fills, along with UOAs generated from Amsoil oil and Havolin conventiona.l but, oddly, received very little response on said posting. This despite some interesting results.
I kept the OCIs at about 5000 miles. The runs were short due to the emergence of nickel in the UOAs (started with Amsoil run).
The vehicle is a 2005 Acura TL with a manual transmission. One driver, all oils run under similar conditions, similar length of time and milage. Many UOAs include TBN, and RLI in particular has TBN and TAN.
Since you are curious about the RLI bio-syn oil, I wonder what comment you might have about the "head to head" comparison of those oils. You can glimpse some of the performance issues with RLI (or other oil, if any).
The UOAs are posted in the UOA section; no link as I do not wish to appear to "derail" the thread.
No derailing here. If you have them handy, post away.