I am sure there is but here are my thoughts.
1. You might save $10.00
2. You change it once a year assuming normal use (not commercial).
3. You should change it at the end of the year during winterization to
ensure no water in the gearcase.
4. Why take a chance on ruining a very expensive lower unit to save $10.00
a year. You spend a lot more than that for insurance that you hope you
never need. If you really want to save money - don't buy insurance.

Just my thoughts.

--
Tony
my boats at http://t.thomas.home.mchsi.com

"Rich" wrote in message
. com...
Is there a cheaper alternative to Merc lube? Its an Alpha 1 drive, what
weight gear oil should it take?

Thanks,
Rich