Suzuki DL650A Owner's Manual page 16

JASO T903
The JASO T903 standard is an
index to select engine oils for 4-
stroke motorcycle
engines. Motorcycle and ATV
engines lubricate
transmission gears with engine
oil. JASO T903 specifies perfor-
mance requirements for motorcy-
cle and ATV
transmissions.
There are two classes, MA and
MB. The oil container shows the
classification as follows.
1
Code number of oil sales company
2
Oil classification
and ATV
clutch and
clutches and
Energy Conserving
Suzuki does not recommend the
use of "ENERGY CONSERVING"
oils. Some engine oils which have
an API classification of SH or
higher have an "ENERGY CON-
SERVING" indication in the API
classification
These oils can affect engine life
and clutch performance.
SAE
10W-40
Not recommended
2-4
doughnut mark.
SAE
10W-40
Recommended