M-8G2k
GOST 8581-78
Motor oil M-8G2k is obtained by mixing distillate and residual components produced from sulfurous oils with an additive composition. Use, respectively, for winter and summer operation of motor diesel engines without pressurization or with low boost. Different from the oils of M-8G2 and M-10G2 only significantly more effective compositions of additives, which makes it possible to increase the time of oil change, successfully use M-8g2k oil in modern KAMAZ, ZIL cars, as well as buses "Ikarus". G2 group oils are produced from sulfur and low-sulfur oils. All the oils of this group contain much more effective additives than the oils of the B2 group. The high degree of doping of G2 group oils allows to apply them to more severe conditions where high thermal stability, the best antioxidant, washing-dispersing, neutralizing and anti-wear properties are required. High-speed diesel engines, lubricated with G2 group oils, operate on distillate fuels with sulfur content up to 0.5% (mass fraction), medium and low - speed marine diesel engines with a large cylinder diameter — up to 1.5% (mass fraction).
| Index name | Norm |
|---|---|
| Viscosity kinematic at 100°C, mm2/s | 8,0±0,5 |
|
0°С, no more than
|
1200 |
|
-12°С, no more than
|
- |
| Viscosity index, not less than | 95 |
| Temperature, °С: | |
|
Flash Point, COC
|
210 |
|
Pour Point,
|
-30 |
| Corrosion on lead plates, g/m2, not more | absents |
| Alkaline number, mg KOH/g, not less | 6,0 |
| Ash content sulfate, % (mass fraction), not more | 1,15 |
| Stability on induction period of sedimentation (IPO), withstands, h | 35 |
| Density at 20°C, kg/m 3, not more than | 905 |
| Mass fraction of active elements,%, not less: | |
|
calcium's
|
0,19 |
|
barium's
|
- |
|
zinc's
|
0,05 |
|
phosphorus's
|
0,05 |
| Degree of purity, mg/100g, not more | 450 |
| Mass fraction,%, not more: | |
|
mechanical admixture
|
0,015 |
|
water
|
traces |
