I believe Vince stated 840ml or 1 liter of 20w- 50. I'm not sure what's in primary, it looks like red,ATF. I will be doing the 300 mile service , I'm still not 100% sure what to put in, I know some older threads have talked about this. According to my owners manual I should be Okay using Wal-mart oil as long as it is API -SG.My town has only a Suzuki/Ford dealer and a Yamaha/tire shop so I may buy some Suzuki lube.