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2008
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Impreza F4-2.5L SOHC
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Compression Check
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Specifications
Compression Check: Specifications
Compression (throttle full open):
Standard 1,020 - 1,275 kPa (10.4 - 13.0 kgf/cm2, 148 - 185 psi)
Difference between cylinders 49 kPa (0.5 kgf/cm2, 7 psi) or less