Re: 9.9, 4 stroke oil
The FC-W rating just came out due to the differences that a 4-stroke outboard oil has to endure compared to a car oil. Most 2005 outboard manufacturers require an FC-W rated oil.<br /><br />The new october issue of Trailer Boats Magazine has an article and test results of both outboard and car oils.<br /><br />You can use the semi-synthetic Ultra oil and it is good for 200 hrs of use (or once a year) or the less expensive J/E 4-stroke outboard oil. You can also use a quality 10W-40 oil even though it is not FC-W approved, since the same outboard in previous years only required a regular oil if J/E oil was not used. Remember to change oil often.