Use the 87 as prescibed, and I suggest get yourself if you don't already
have them ... bearing buddys http://www.bearingbuddy.com/ to make trailering
safer ... imo


"David" wrote in message
news:ZtHyc.19658$E03.10155@fed1read01...
Hello all,

I am new to boating and also this newsgroup. I just purchased a 18 foot
Sea
Ray Sport boat with a 3.0 L Alpha I MerCruiser I/O engine. Can anyone
tell
me what grade of gas I should use? The suggested one in the owner manual
says at least with a octane level of 87. People are telling me difference
things, some say just to use regular, some say to use premium. Should I
add
gas treatment into the gas tank too.

Another question is my boat trailer. How do I know its time to add
bearing
grease into the bearings?

Another recommendation is appreciated. Thanks in advance.

David