| abstract |
Use of a Fischer-Tropsch derived fuel component in a fuel composition, to reduce the rate of accumulation of acidic components in a lubricant fluid present in an internal combustion engine which is running, or is intended to be run, on the fuel composition. The Fischer- Tropsch derived fuel component may also be used to reduce the oxidation and/or nitration rate in the lubricant fluid, to reduce the rate of acid-induced engine wear in the engine and/or to reduce the frequency of lubricant fluid changes in the engine. The fuel composition is preferably a diesel fuel composition. |