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#Compression Ratio

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Volvo D13 diesel engine with compacted graphite iron block and high-pressure common rail fuel system

Equipment & OEM May 10, 2026

Volvo D13 Hits 20:1 Compression, 35,000-PSI Rail for 2027 NOx Rule

New 14-wave piston and compacted graphite iron block deliver EPA 2027 compliance without power or fuel-economy loss, Volvo says.