[bradford]

I have a different take on the subject. *Outboard manufacturers are in the outboard business, not the oil business. *I used to run Penzoil tcw-3 until Skools told me that the supertech brand was the same stuff as penzoil. *I did my own investigating (using all official redneck experimentation protocols of course *;) )and bought a jug of each. *They are both the same dark blusih color, the same viscosity(I think they felt the same rubbing my fingers together). *And the jugs are the exact same except for color. *I run a 50:1 premix on a recently rebuilt 1990 Evinrude 225 and so far haven't had any problems. *Everybody and their brother will have a differnt opinion on this subject so I just thought I'd share mine. *If i was gonna spend extra money on oil I'd just be buying the penzoil brand stuff or if I HAD to buy a mfr brand oil I'd probably stick to the Mercury stuff. *Again, "Just my 2 cents". * :)

P.S. *The Wally World Supertech oil cost me $8.14 per gallon. *Look in both the automotive section and the marine section, sometimes the price is different for the same stuff. * 8)

P.S.S. For ya'll cheap skate do-it-yerselfers, Napa brand motor oil is manufactured by Valvoline. 8)