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 MANUALSCHEVROLET1993SUBURBAN C2500, 7.4 NREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSFLUIDS
1993 Chevrolet Suburban C2500, 7.4 N
Quick Lookups: Fluids
1993 Chevrolet Suburban C2500, 7.4 NSECTION Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Refrigerant | Front & Rear | 4.25 LBS. | 1.92 KG | R-12 | S | ||
| Air Cond Refrigerant | Front | 3.00 LBS. | 1.36 KG | R-12 | S | ||
| Automatic Transmission Fluid | Trans Mfr CD 4L80E/MT1 | Drain and Refill | 5.00 QTS. | 4.73 L | Automatic Transmission Fluid DEXRON IIE | S | |
| Automatic Transmission Fluid | Trans Mfr CD 4L80E/MT1 | Overhaul | 11.50 QTS. | 10.88 L | Automatic Transmission Fluid DEXRON IIE | S | |
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | S | |||
| Differential Gear Oil | Rear,8 1/2" | 2.10 QTS. | 1.98 L | API - GL-5, SAE 80W-90 Gear Oil | S | ||
| Differential Gear Oil | Rear,9 1/2" | 3.25 QTS. | 3.07 L | API - GL-5, SAE 80W-90 Gear Oil | S | ||
| Engine Coolant | 7.4L Eng | w/ Air Cond | 25.00 QTS. | 23.65 L | 56/44 mixture of Ethylene Glycol Base Antifreeze and water | GM Specification 1825-M. | S |
| Engine Coolant | 7.4L Eng | w/o Air Cond | 23.00 QTS. | 21.76 L | 56/44 mixture of Ethylene Glycol Base Antifreeze and water | GM Specification 1825-M. | S |
| Engine Oil | 7.4L Eng | w/Filter | 7.00 QTS. | 6.62 L | API - SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | S | |
| Engine Oil | 7.4L Eng | w/o Filter | 6.00 QTS. | 5.67 L | API - SAE 10W-30 (Below 0Deg.F to 60Deg.F), 15W-40 (0Deg.F to Above 100Deg.F), SAE 30 (Above 32Deg.F to Above 100Deg.F) | S | |
| Fuel Tank | 34.00 GALS. | 128.7 L | S | ||||
| Power Steering Fluid | N/A | N/A | GM Power Steering Fluid | GM Part No. 1050017. | S | ||
| Transfer Case Fluid | 2.30 QTS. | 2.17 L | Automatic Transmission Fluid DEXRON IIE | S | |||
| Windshield Washer Fluid | N/A | N/A | Optikleen Windshield Washer Fluid | Follow the Manufacturer's Instructions for the mixture ratio. | S | ||
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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.