I did look up the Redline oil. It is MA rated, not MA2. It may work just fine. It's just good insurance to get an MA2 rated oil. Otherwise, the only way to be sure an oil will work is to risk destroying your wet clutch.
JASO is a rating developed by Japanese engineers (hence the 'J' designation) to address wet clutch applications, among other things. The ratings can be a bit confusing. But simply put, if the oil meets all parameters of an MA1 oil (the lowest wet clutch friction value), then it is rated MA1. If it meets all the requirements for an MA2 oil (the highest wet clutch friction value), then it is rated MA2. If it meets all of the MA1 requirements, and some of the MA2 requirements, it is then rated an MA lubricant.
This is what the JASO web site states.
4T Specifications Meaning 4 Stroke - Wet Clutch
Modern passenger car engine oils contain more and more friction modifiers. While this is a good thing for that segment (reduces wear and fuel consumption) it is very bad for motorcycles which use engine oil to lubricate their transmission and wet clutch. JASO introduced the MA and MB specification to distinguish between friction modified and non friction modified engine oils. Most four-stroke motorcycles with wet clutches need a JASO MA oil.
JASO MA
Japanese standard for special oil which can be used in 4-stroke motorcycle engine with one oil system for engine, gearbox and wet clutch system. Fluid is non-friction modified.
JASO MB
MB grade oils are classified as the lowest friction oils among motorcycle four-cycle oils. Not to be used where a JASO MA grade oil is required.
JASO MA oils are further broken down into categories MA1, MA & MA2 designating how much clutch friction (or lack thereof) will be available depending on which formula is used.
Motor oils that meet the JASO T 903:2006 standard are classified into four grades: Going from Low clutch friction to High clutch friction they are; JASO MB, MA1, MA and MA2. The classification is based on the results of the JASO T 904:2006 clutch system firction test.
As you can see in the chart, there is a range within which a rated oil can fall. So you can get an MA2 oil that just barely meets the MA2 requirements. Or you can get an oil that rates very high in each category of the MA2 rating. Without more information on the particular oil you are using, it is difficult to know if your oil just barely makes the cut. Or if it is near the top of its class. This goes for all ratings. Your MA oil may just barely make the cut. Or, it might be just short of a full MA2 rating. However, usually, if an oil is close to the next level, the manufacture will make the modification necessary to achieve the next higher rating.
I can tell you that the 1330 clutch is much less picky about which oil you use than the 998, which is quite picky.
opcorn::clap:
hyea:
