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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo Extended, 6.6 6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L (LMM) - Introduction (2 Of 2) >> Specifications >> Fuel System Specifications >> Fuel Specific Gravity Testing

Fuel Specific Gravity Testing

Use a J 38641-B  Diesel Fuel Quality Tester to measure the fuel specific gravity (API Rating). Follow the instructions on the tool to btain the proper temerpature-adjusted value. This information must be accurate for the proper diagnosis of the fuel system.

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