kenny70 Posted February 26, 2006 Share Posted February 26, 2006 Anyone know what grade of engine oil to put in this bike? Link to comment Share on other sites More sharing options...
Robbie Posted February 26, 2006 Share Posted February 26, 2006 My Local Yamaha dealer puts Mobil 1 fully sinthetic oil in mine. I've been told you can't interchange between sinthetic and semi sinthetic so you should find out what is in already. Regards Robbie Link to comment Share on other sites More sharing options...
shoggoth80 Posted February 27, 2006 Share Posted February 27, 2006 i would say what you put in depends entirely on where, and how you ride. i wouldn't worry about synthetic/semi synth stuff... use what is recommended for your conditions... just thoroughly drain your oil, and put a new filter in, and then top off. never heard of synth/semi synth/dino oil problems when you do a full change. those oils aren't compatible with each other (as in don't add a semi synth if you're running a full synthetic, or a dino oil if you're running synth etc.). what is recommended for your bike to start with? Link to comment Share on other sites More sharing options...
chip2222 Posted February 27, 2006 Share Posted February 27, 2006 the manual says to use 10w-40 oil this covers all riding condition apart from racing, the alternative is 15w-40 but only in warner climates (uk summer) i use a semi sythetic all year round and change it every 6 months and my thundercat is purring like a kitten. and that is with covering aprox 10,000miles a year. im not too sure if you can mix full and semi oil but ill look into it. Link to comment Share on other sites More sharing options...
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