Which after 95K miles on my Prius has amounted to 2 oil changes a year. At current prices that's only 1/10 of the savings I need to see to switch on purely economic grounds.Lots of supporting materials and service will be gone, too.
1) No more oil and filter changes.
2) No more coolant, or hoses, clamps, radiators.
3) No more tuneup parts.
4) No more transmission oil and filter changes.
5) No more pollution controls of any kind.
I look forward to those headaches being gone. Lots of savings there, too.