Chief Oil
Yacomi TCW-III

Yacomi TCW-III

Yacomi TCW-III
Yacomi TCW-III


- Self-mixing.
- Higher and constant engine performance due to excellent port cleanliness, substantially reduced ring belt groove deposits and varnish build-up.
- Complete mixture combustion results in superior power output.
- No sparking fouling, nor engine preignition.
- Excellent bearing and cylinder lubrication.
- Minimum smoke and odour formation.
- Engines keep extremely clean internally.
- Very good rust protection of the engine during long periods of storage.
- Low pour point and excellent low temperature fluidity for proper and uninterrupted injection system cold weather serviceability.
- Exhaust gas catalyst compatibility.

* Approval not requested


This Technical Datasheet is considered being accurate at the date of printing. It has been compiled with the utmost care, but Chief Oil International B.V. cannot accept any responsibility for damage, of any kind, that may be caused by using these data or the product concerned. The information in this publication may not be considered as any guarantee of specific properties.

Yacomi TCW-III

Description: Superior ashless mineral oil type, two cycle oil for water and air-cooled two stroke engines running on “pre-mixed” fuel as well as those with lube injection system.

Application: For a wide range of two stroke engines: premixed (standard ratio 1:50 or according OEM prescriptions) or in separate lubricant reservoir.

Water cooled outboard (except 4 stroke HONDA type), recommended by
Water scooter engines, chainsaws.
Certain mopeds, scooter and go-cart types.
Certain lawnmowers and powered garden equipment.
Some pre-mixed fuelled snowmobile/snow scooter models.


Meets and replaces former “TC-W” and “TC-WII” lubes.

Typical analysis

Density at 15°C  :  0.874
Viscosity at 40°C  :  41 cSt
Viscosity at 100°C  :  6.9 cSt
Viscosity index  :  129
Pour point  :  -33°C
Flash point  :  100°C
TBN  :  9.3 mg KOH/g
Colour  :  Purple
Sulphated ash  :  Nihil




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