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Expand your knowledge on compression

Compression

Within the internal combustion engine, the compression ratio, as it’s known, is the piston’s movement as it squeezes the fuel/air mixture in the cylinder. BG Products know that sadly loss of compression over time is inevitable. So it's a good thing BG's got a product to restore and maintain peak compression! Adding BG EPR to the engine and letting it tick over for at least 15 minutes restores compression by dissolving the deposits that clog rings and seals.

Peak compression is a must

Most technicians know that peak compression in an engine is necessary to allow an engine to extract the most energy from the fuel/air mixture. An engine’s proper compression ratio allows the right amount of oxygen and fuel molecules into a reduced space (the cylinder) along with heat caused by compression. A given petrol engine’s compression ratio example can be approximately 9:1, which means 9 units of air into the space of 1 unit. All of these elements working together result in optimum fuel/air mixing to ensure the maximum release of available energy from the fuel source. So, an engine’s proper compression ratio is a good thing.

BG know it’s inevitable that every engine will experience a loss of compression. Loss of compression means a cylinder can lose some of its potential fuel/air mixture. Compression loss usually occurs due to improper piston ring sealing (or more rarely head gasket, valve sealing or piston wear).

This loss in compression is not solely related to driven mileage, but many factors related to daily operation. Performance problems related to compression loss have been recorded as early as 30,000 miles. Loss of compression results in decreased performance, reduced fuel economy, higher emissions, possible engine sludge and a greater degree of driveability problems.

Maintain peak compression

Solutions in the past for restoring compression were labour intensive, time consuming and expensive. It’s a good thing BG’s got a product to restore and maintain peak compression! The main benefit of BG’s product number 109 is there in the name: BG EPR™ Engine Performance Restoration™. BG EPR™ has proven to be a simple and very effective solution to engine compression loss. Adding BG EPR™ to the engine and letting it tick over for at least 15 minutes restores compression by softening, emulsifying and dissolving hard-to-remove deposits that can build up in less than 30,000 miles, clogging rings and seals.

Testing has shown impressive benefits - with restored performance, reduced emissions and regained MPG from just one oil change using BG EPR™!