TOPQuestions and AnswersWhen adding 10% Bell Hammer to engine or MT gear oil with a specified amount of 3000 ml, should it be “3000 ml oil + 300 ml additive” or “2700 ml oil + 300 ml additive”? What should be noted?
最終更新日 : 2025/09/08

When adding 10% Bell Hammer to engine or MT gear oil with a specified amount of 3000 ml, should it be “3000 ml oil + 300 ml additive” or “2700 ml oil + 300 ml additive”? What should be noted?

Regarding the mixing amount
Between the two cases:
3000 ml oil + 300 ml additive = total 3300 ml
2700 ml oil + 300 ml additive = total 3000 ml

Bell Hammer is designed to work effectively at 5–10% of the oil volume. In this example, the first case equals exactly 10%, while the second case would be about 11%, which is slightly excessive. Therefore, the first method is recommended.

Since Bell Hammer is an additive, it is important that the combined total of oil plus additive remains within the manufacturer’s specified oil capacity range. This ensures safe use and reliable performance.

Precautions when adding
・Always keep the total volume within the manufacturer’s specified oil capacity
・It is safe to add 5–10% even from the first use
・Choose the product according to the application:
 - Bell Hammer Light for engine oil
 - LS Bell Hammer concentrate for MT gear oil

Many users experience smoother revving, quieter operation, and improved shift feel with Bell Hammer. You can use it with confidence.

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