"m" wrote in message
...
We just got a new mercury optimax 135 hp (four cycle, of course) and
during its break-in it used a lot of oil. Is this normal? And how much
is too much and should I start worrying? (If everything was full from the
dealer, it was about 2 gallons low of oil after 2 hours of break-in.)

Matt

Optimax is a 2 stroke. Fuel injected.