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Engine Oil

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MOTY'S JAPAN Company Limited

2-25-4 Higashinippori Arakawa-ku, TOKYO
116-0014 JAPAN

TEL : +81-3-3806-8787
FAX : +81-3-3805-5362

TOP > Products > Engine Oil(4-Stroke Motorbike)

Engine Oil(for 4-Stroke Motorbike)


Moty's 4 stroke motorbike engine oils provide good engine/transmission performance under low temperature as well as high temperature under high load conditions. Especially, the primary concept of this product is to bring you smooth transmission feeling for long period of time. To materialize this, thorough study was done on frictional characteristics at low sliding parts of gears using latest tribology. Also, Moty's have established new function additive balance exclusively for this product series. We have four types of Moty's 4 stroke motorbike engine oils in this series. Various viscosity grade will enable ultimate customization of your selection.

M150  1L / 4L / 20L

This is the standard model 4 stroke engine oil consisting from high performance hydrocarbon synthetic base stock and high quality ester type base stock fortified with well-balanced Moty's proprietary function additives enabling smooth transmission feeling.

  5W30 10W40 15W50
Kinematic Viscosity(@40℃) mm2/s 67.0 92.4 143
Kinematic Viscosity(@100℃) mm2/s 11.3 14.4 19.7
Viscosity Index 162 161 159

M151  1L / 4L / 20L

This product can be widely used from high performance scooters to high performance sport bikes and displays excellent engine and transmission characteristics under high temperature/high load conditions. Especially, when wet type transmission plate is subjected under high temperature and high load at sport driving or racing conditions, this product will optimize the friction characteristics and improve pick up response by reducing viscosity drag at high revolution. Therefore, this product is quick response type racing engine oil developed through toy's proprietary technology on smooth shift feeling. This product consists of hydrocarbon type synthetic base stock which has excellent viscosity/temperature characteristics and ester type synthetic base stock which has high temperature resistant and good soluble properties. Also, this product uses function additives which have flexible adhesive/cohesive capabilities at shearing speed of sliding/moving pats.

  5W30 10W40 15W50
Kinematic Viscosity(@40℃) mm2/s 68.4 102 127
Kinematic Viscosity(@100℃) mm2/s 11.2 15.0 17.8
Viscosity Index 157 153 156

M151H  1L / 4L / 20L

This Product having basic concept of M111, has higher thermal stability under high load conditions.

  5W30 10W40 15W50
Kinematic Viscosity(@40℃) mm2/s 68.5 102 145
Kinematic Viscosity(@100℃) mm2/s 11.0 14.9 20.1
Viscosity Index 151 152 160

M152  1L / 4L / 20L

This product is developed for extreme high temperature and high load conditions as experienced at long endurance races. Heat resistance and wear resistance of this product, and friction control capability against wet plates will be confirmed by strong oil film and stable hydraulic pressure. Furthermore, unparalleled smooth shift feeling even under adverse driving conditions become possible by Moty's proprietary technology. Several ester type synthetic base stocks which have excellent characteristics on heat resistance, solubility and adherence/coherence are used. Moty's proprietary function additives enforce the performance of this product. Please keep this in your mind that due to strong oil film of this product, you may feel unique and full bodied feeling. If you think this feeling is too much and over quality, we recommend you use M151/M151H.

  10W40 15W50
Kinematic Viscosity(@40℃) mm2/s 100 134
Kinematic Viscosity(@100℃) mm2/s 14.6 18.2
Viscosity Index 151 152


For 4 stroke engines on motorbike, we also have special mineral base engine oils materializing Moty's proprietary lubricant concept.

M256  1L / 4L / 20L

This product is developed using special mineral base stock and well-balanced Moty's proprietary function additives to fill the requirements of old-fashioned machines. Mechanical noise and shock at gear shift are considerably reduced and oil bleeding leakage as often seen on old timer motorbikes can drastically be reduced.

  10W40 15W50
Kinematic Viscosity(@40℃) mm2/s 97.3 142
Kinematic Viscosity(@100℃) mm2/s 14.5 19.9
Viscosity Index 154 162

M259  1L / 4L / 20L

This product is developed for endurance type of use under high temperature and high load. You will notice steady torque feeling and smoothness/quietness which are only possible by Moty's proprietary mineral base oil. You will know high level of thermal stability and durability.

  15W40 20W50
Kinematic Viscosity(@40℃) mm2/s 120 146
Kinematic Viscosity(@100℃) mm2/s 15.3 17.3
Viscosity Index 133 129


Moty's 2 stroke engine oils are developed to give maximum performance to engines under high temperature and high load conditions as seen on mini bikes, motocross, enduro, and tuned engines. This product has high unit-wear and extreme pressure characteristics, and drastically reduce carbon buildup even under high temperature. We have three types of oils in this category. We recommend M171 for town riding and sport riding.

M171  1L

Kinematic Viscosity(@40℃) mm2/s 45.4
Kinematic Viscosity(@100℃) mm2/s 8.95
Viscosity Index 182

M181・ M182  1L

  M181 M182
Kinematic Viscosity(@40℃) mm2/s 53.0 185
Kinematic Viscosity(@100℃) mm2/s 9.26 22.0
Viscosity Index 158 143
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