The operation of combustion engines, both reciprocating and rotary, can be improved in many areas by the reduction of friction and wear. This collection of papers reviews improvements in traditional engines and also in Stirling and Wankel engines, together with future trends in anti-friction coatings. Specific topics covered include: ball and roller bearings, cylinder line materials and finishes, pistons and piston rings, filters and filtration, impact of friction and wear on fuel economy, and engine management regimes to reduce wear. These proceedings would be of interest to engineers and all involved in the pursuit of economy, reliability and longer working life in relation to the whole field of combustion engines.