GOST 8581
GOST 8581 1978-JAN-01 Motor ols for motor and tractor desel engnes Specfcatons-ncorporatng Amendment 1 021980 Amendment 2 021981 Amendment 3 041982 Amendment 4 081983 Amendment 5 091985 Amendment 6 121986 Amendment 7 061989 Amendment 8 121990 Amendment 9 022000 Amendment 10 112002 Amendment 11 2010