
Announcement on the revision of the "MOTORCYCLES-FOUR-STROKE CYCLE GASOLINE ENGINE OILS(JASO T 903)IMPLEMENTATION
MANUAL"(2006. 4)
We would like to inform you that the JASO engine oil standard implementation
panel revised the on-file standard implementation manual according to the
revision of " MOTORCYCLES-FOUR-STROKE CYCLE GASOLINE ENGINE Oil Standard
(JASO T 903:2006)".
The significant changes in Standard and Application manual of the latest
revision include:
(1) Subdivision of the engine performance classification MA.
MA "MA2 and MA1"
(2) The set of "Phosphorus content"
Phosphorus content : ≥0.08 and
≤0.12
(3) The change of Engine oil quality
The oil quality requirements for API categories are revised to "SG, SH, SJ,
SL, SM" or equivalent, eliminating SE and SF.
(4) The adoption of the effective period for standard conformity oil@
| Year of Issuance of the Standard |
First date when Classification Indication is
allowed |
Last date when new filing is accepted |
Last date when on-filing is maintained |
| 1998 |
1999 July 1 |
2006 April 30 |
2011 April 30 |
| 2006 |
2006 May 1 |
|
|
(5) The revision of performance display format
(This revised part is shown by the red.)
| old
manual |
revision manual |
 |
 |
In case of on-file as MA or MB
(X = A or B) |
 |
Last date when new filing is accepted :
April 30, 2006 |
In case of on-file as MA1 or MA2
(Y = 1 or 2) |
Reference: About the English edition, the text which is related to the
engine performance guarantee in lower part was simplified.(It is only
JASO T 903:2006)
Concerning details, please confirm a revision manual(4T_EV0604.pdf).
And old
manual is (4T_EV0412.pdf).
* Data submission will be accepted starting April
10, 2006.
* Official commencement of the performance display will be start on May
1, 2006.