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I went to my local shop today to get some Maxima SuperM, to my dismay they were out of it. The only Maxima products they had left were Fromula K2 and Castor 927. Each was a 16oz bottle so I picked up one of each. I've never used either one though I have heard Castor 927 is good oil but very dirty and gums up the powervalve...it does smell good though. I know nothing about Formula K2. I run my SuperM at 50:1 and plan on using this oil I got at 50:1 also. So are both of these oils good to use at my dilution? I'll try again this weekend to see if they have my 16oz bottles of SuperM. i don't care if i run the best oil it will always be 32:1factory knows best and makes the motor last longer and the more oil (within reason) means more power,better lubrication the to main bearings,much better ring seal and your bike will love it ,try some motul 800 synthetic,smells awesome to..
I've used 927 for quite a while and never gummed up anything on my '93,,,but I run the desert with its higher speeds.
well I got my SuperM over the weekend so I'm happy now. I gave the 927 to a friend that uses it but still have the Formula K2...nobody has any opinion on Formula K2?