Oil compositions for improved fuel economy

   
   

Oil compositions and formulated crankcase engine oils demonstrate improved fuel economy performance when comprising an overbased sulfonate detergent having a total base number greater than about 450 and which contain at least one other additive which includes a succinimide type dispersant. Methods for improving fuel economy employing such high TBN sulfonates and engine oil formulations and concentrates containing such are disclosed.

Las composiciones del aceite y los aceites de motor formulados del cárter del motor demuestran funcionamiento mejorado de la economía de combustible al abarcar un sulfonate overbased detergente teniendo un número bajo total mayor que cerca de 450 y que contienen por lo menos un otro añadido que incluya un tipo dispersor del succinimide. Los métodos para mejorar la economía de combustible que emplea tales altas formulaciones de los sulfonates de TBN y del aceite de motor y los concentrados que contienen tales se divulgan.

 
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> Delivery system having encapsulated porous carrier loaded with additives, particularly detergent additives such as perfumes

> Process for coating detergent granules in a fluidized bed

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