PTFE? that Teflon additive in 2 stroke oil is new to me. I would prefer not to have that additive in there on a steel bore engine. Post what the diff is between 154 and 298. The last time I saw chem tests on the Mercury Premium Plus it was loaded with Molybdenum disulfide and some have complained it is a dirty sooty oil. I use to use it and it required their Quickleen additive they recommend to keep the carbon down. With the Pennzoil Marine XLF no issues burns very clean and I run 16:1 in the vintage race engines but high revs keeps it clean.
Bookmarks