Have a look on the link that Richard has posted - that site should have the oil spec. basically its a 15 grade hydraulic fluid with some aviation spec.
[QUOTE=Richard B] Recommended by whom? Not the manufacturer... I've read the Sea Star user manual and they don't recommend any such annual replacement. Have a look here: [url]http://www.seastarsteering.com/PDFs/296221-E.pdf[/ur
I wasn't professing to be an expert - simply that this is recommended in the installation manual of Hydraflex - actually having read it they recommend every 2 years or 200 hrs.
War Shot
