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This paper investigates the friction reducing properties and fuel saving potential of a boric acid based fuel additive with remarkably promising results in field tests. The effect of normal load and sliding velocity on the friction behavior was studied with a reciprocating model test developed to mimic the dual lubrication from the fuel additive and the engine oil. Substantial friction reductions...
In field tests, a boric acid based fuel additive has led to reduced fuel consumption. The reduction was substantial, an average of 6 and 10% in passenger cars and diesel generators respectively. Aiming towards improved understanding of mechanisms behind the fuel saving, three methods to mimic the effect of the additive in the piston-ring/cylinder contact have been evaluated. A reciprocating cylinder/flat...
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