Re: tohatsu vs etec
I think the Tohatsu DFI is different than the E-Tec. If I remember correctly it is close to the same that Mercury uses on the OptiMax.
Again service is the key thing there, but my personal prefrence would be the E-Tec, but again it will cost more.
I have never seen a test done between them, but like JB said, maybe you could get the dealer to do one for you.