Abstract: A combustion engine is configured to substantially reduced pressure in the crankcase relative to atmospheric conditions. Under the conditions of reduced pressure, removal of contaminants present in the lubricating oil present is effected, which may provide one or more benefits including extended service intervals, reduced volumes of motor oils used, and lessened wear of internal engine components.

Abstract: A combustion engine is configured to substantially reduced pressure in the crankcase relative to atmospheric conditions. Under the conditions of reduced pressure, removal of contaminants present in the lubricating oil present is effected, which may provide one or more benefits including extended service intervals, reduced volumes of motor oils used, and lessened wear of internal engine components.

Abstract: A method for advising a motor vehicle operator of the need to change the lubricating oil in a direct or an indirect injection diesel engine. The rate of degradation of the engine oil is determined from monitoring engine revolutions, engine oil temperature and engine oil contamination content. At the start of service after an oil change has occurred, a value corresponding to the maximum allowed number of engine revolutions for the useful life of the oil is stored in the memory of the vehicle's computer. Periodically during each period of vehicle operation, an effective engine revolutions value is determined in relation to the product of measured engine revolutions, an engine oil temperature dependent penalty factor and an oil contaminant content dependent penalty factor. The penalty factors increase the effective engine revolutions value to compensate for engine operating conditions that tend to cause increased degradation of the engine oil.

Abstract: A water saver attachment for toilets being pivotally connected to selectively cover a drain pipe within a flush tank of the toilets. The water saver attachment includes a hollow L-shaped water weight box having a horizontal section with an open top side and a vertical section connected thereto. A support arm is connected to the hollow L-shaped water weight box and a cover is connected to the support arm. The water saver attachment is pivotally connected within the flush tank by a connection device. The water saver attachment is pivotable between a first at rest position in which the cover seals the drain pipe to prevent water from flowing therethrough and a second flushing position in which the water saver attachment is pivoted whereby the cover is pivoted to selectively allow water to flow through the drain pipe. The water saver attachment automatically pivots back to the first at rest position upon completion of flushing of the toilet to limit an amount of water flowing through the drain pipe.