Originally Posted by Cookee
As far as I am aware, these types of filters are not recomended for Optimax engines, it might be worth checking the installation instructions or asking your dealer.
Yup, it specifically says in the installation book not to fit an additional filter.
I investigated this at time of installation and noone, including some Barrus people, could think of a good reason why not to.
Therefore I installed a "merc" inline filter in addition to the one already fitted to the engine.
This was IMHO a good idea since when ever i change the filters there is some crap and generally a little water in the first filter and the (smaller) optimax integrated filter is nice a clean. I change the filters every 50 hours, although this may be a little keen, i'd rather fork out the money that risk engine damage from crappy fuel from marina fuel barges.
Anyway, tim, yes fit one.