i was told it came with a blend,not 100% on that ,chuck at sullivan bros told me when i purchased it new,after my first change i have been using full synth castrol 5/30.
i do know of another friend of a friend that uses standard oil that has tapping issues on start up. go with the synth change it every 7000 miles just my 2 cents
i do know of another friend of a friend that uses standard oil that has tapping issues on start up. go with the synth change it every 7000 miles just my 2 cents