Operation CHARM
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Forester F4-2.5L DOHC Turbo
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Tune-up and Engine Performance Checks
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Compression Check
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Specifications
Manuals through 2025 now available!
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Compression Check: Specifications
Compression (fully open throttle):
Standard
981-1,177 kPa (10-12 kgf/cm2, 142-171 psi)
Limit
882 kPa (9.0 kgf/cm2, 128 psi)
Difference between cy1inders
49 kPa (0.5 kgf/cm2, 7 psi), or less