I've used the cheap stuff in mine before without issue.
... though at all the docks up and down the river, the bring in the high
octane stuff....
never noticed much of a difference.

-j

"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