Re: oil filter
WOW! go away for a few days and look what happens.
Here is a little lite reading
There was another study done a few years ago that specifically targeted "marine" filters and as soon as I dig it up I will post it. The short short version is :
Fram filters offer very high filtration, BUT low flow capability, which means that as oil pressure rises(like it does at higher RPM's) the filter becomes a restriction andt he bypass valve opens = NO FILTRATION at this point. You can get away with this in a car(and millions do every year) In a marine engine your odds go down(although they are probably still in your favor, because few marine engines succumb to oil related failures - That pesy water intrusion takes out alot more) but the $6 per year savings just never seemed worth it. Also, lets not forget the cheap construction, lotsa plastic and cardboard inside that pretty can.
Don - the Merc filter is not a repainted AC filter. Merc went the opposite direction of FRAM. They sacrificed filtering ability for a high flow rate. They were able to flow 3 times(IIRC) the oil without popping the bypass valve. Basically traded great filtration at idle for OK filtration at all speeds.
Jason - your NAPA filteres are made by WIX and have always been top contenders in filter comparisons. I use the NAPA Gold filters in my cars and truck.
Last but not least, and this is what I now use in the boat(I gotta find that marine filter study) the K&N oil filter. They use a cellulous filter media that offers filtration equal to the best(including WIX and the beloved FRAM's)
AND has a flow rate that is slightly higher than the merc filter. It is the best of both worlds, but pricey at $15 each. However, once a year, it really doesn't make much difference financially.