salesrep, sorry I did not get the marketing name correct for the soy based gasoline additive. 131C was tested by us when Bob Winters brought some about 4 years ago. Is the 131C reformulated since then?
Joel, Both diesel and gasoline applications using Lucas fuel adds have been inert when gauged by UOA. Customers may insist on running the adds and if the UOA is OK I do not press the issue after making my suggestions based on the results compared to our data base of the same engine and application.
Terry