TO-4 Transmission Oil recommended for use in crankcase requiring API CF or below performance.
What was the issue? A Verification Request Form (VRF) was raised about a TO-4 transmission oil that had a technical judgement as causing ‘no harm’ when used in some low tier crankcase applications (API CF and below). This was supported by a statement on the PDS, testing data and experienced engineering judgement. The PDS statement: […]


