Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1998EXPRESS 1 TON VAN V8-5.7L VIN RREPAIR AND DIAGNOSISSPECIFICATIONSCAPACITY SPECIFICATIONSREFRIGERANT OILREFRIGERANT OIL DISTRIBUTION
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN R
Refrigerant Oil Distribution
1998 Chevrolet Express 1 Ton Van V8-5.7L VIN RSECTION Refrigerant Oil Distribution
Compressor systems require 240 ml (8 fluid ounces) of polyalkylene glycol (PAG) synthetic refrigerant oil GM P/N 12345923 or equivalent). During component replacement and conditions stated, new oil quantities should be added to the system as follows:
System
Front Only 240 ml (8 fl. oz.)
Front and Rear 330 ml (11 fl. oz.)
Compressor
If less than 30 ml (1 fl. oz.) is drained add 60 ml (2 fl. oz.)
If more than 30 ml (1 fl. oz.) is drained add same amount.
Receiver and dehydrator
Add 30 ml (1 fl. oz.) more than what was drained
Evaporator
Add 90 ml (3 fl. oz.)
Condenser
Add 30 ml (1 fl. oz.)
System
Front Only 240 ml (8 fl. oz.)
Front and Rear 330 ml (11 fl. oz.)
Compressor
If less than 30 ml (1 fl. oz.) is drained add 60 ml (2 fl. oz.)
If more than 30 ml (1 fl. oz.) is drained add same amount.
Receiver and dehydrator
Add 30 ml (1 fl. oz.) more than what was drained
Evaporator
Add 90 ml (3 fl. oz.)
Condenser
Add 30 ml (1 fl. oz.)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.