Team-BHP - View Single Post - My Experience With adding Boric Acid in Engine oil

tsk1979 · 27th June 2007, 11:24

Nope not new, the company has been making motor silk(Boron additive) since 2002.
Before the API-CI/ or SM specification came into force Zinc Phosphorous and Boron were used in engine oil. The new classifications restricted these quantities and these 3 were replaced by other additives.
API-CH oil has quite a high percentage of boron, Zinc and Phosphorous.
For example Mobil 1 super syn has 205ppm of boron, even though its the SL standard. In most oils when the standards got changed reduction in Z and P was also supplemented by reduction in Boron, but in many oils like Harley davidson and Kendell GT oil there is 250+ ppm of boron in oil.

27th June 2007, 11:24	#169 (permalink)
tsk1979 Team-BHP Support Join Date: Feb 2005 Location: New Delhi Posts: 12,099	Nope not new, the company has been making motor silk(Boron additive) since 2002. Before the API-CI/ or SM specification came into force Zinc Phosphorous and Boron were used in engine oil. The new classifications restricted these quantities and these 3 were replaced by other additives. API-CH oil has quite a high percentage of boron, Zinc and Phosphorous. For example Mobil 1 super syn has 205ppm of boron, even though its the SL standard. In most oils when the standards got changed reduction in Z and P was also supplemented by reduction in Boron, but in many oils like Harley davidson and Kendell GT oil there is 250+ ppm of boron in oil. __________________ Reclaimed, wrung dry and recycled....!