I think Yanmar required Dex Cool which you can get at any auto supply store. John Meyers Wind Chime #406 Muskegon MI On Wed, Apr 2, 2014 at 12:06 PM, <wflowe3 at aim.com> wrote: > > my antifreeze overflow reservoir is empty. I have some Prestone auto > antifreeze, does it make any difference what kind I use? 2008 Yanmar > diesel. > > Bill > #1146 >