Originally Posted by Koops
Greetings all and Merry Christmas, etc... My query today relates to the type of oil that is suitable/recommended for my 2005 CB900F. A few months ago when I purchased the bike the previous owner told me to use only mineral oil, as this was best suited to the type and age of the engine. Not long afterwards I was in Peter Stephens in Melbourne and asked one of the mechanics there what he would recommend and his suggestion was the Bel Ray EXP semi-synthetic (SAE 20W-50). The guy at PS was a bit confused (and a little bit amused) as to why I would have been told to use only mineral oil, and went on to tell me that the Bel Ray oil was the one they used for all of the CB900Fs that come through their shop. My questions are these: 1. Which oil is best suited to my machine? 2. If the semi-synthetic is the right option, do I need to drain the current oil and replace the filter if I need to top up? Thanks in advance. Koops.
Use whatever oil you prefer - it all does the same job.
The semi's are a good choice in my opinion.
No, there's no problem with mixing the oils.