Synthetic to Regular 2-stroke oil
 

Is there any hazards to be concerned about when putting regular Quicksilver 2 stroke oil when I was previously running Quicksilver synthetic? I know on a car you arent supposed to change back once you use synthetic. Seems like on my 25hp merc I went back and forth all the time with no problems, but this is on a Merc 115 pre mixed gas.

Does anybody have any thoughts on this?

Only thing I have ever been told. Was changing oil types sometimes plugs the screen on the little filter on oil injection. Not sure if true or not.

Better safe than sorry?? I'd stick with what your using

I switched from dfi oil to premium plus in my 200 optimax about 6 months ago and it hasnt been a problem. I've put around 50 hours since the switch.

If it is an EFI motor or carburetor your fine , run it . Or any oil that is NMMA certified TC-W3
Optimax DFI engines Merc now calls for DFI oil