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.
SYS.OK|MANUAL.DB● LIVE
1991 Ford Cab & Chassis 5.8 H, Standard
Quick Lookups: Fluids
1991 Ford Cab & Chassis 5.8 H, StandardSECTION Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Refrigerant | 2.81 LBS. | 1.27 KG | R-12 | S | |||
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | Fill to line on reservoir. | S | ||
| Differential Gear Oil | Dana 80,11.25" Ring Gear | 8.30 PTS. | 3.92 L | Rear Axle Gear Oil | Add 4 oz. of EST-M2C118-A Friction Modifier (C8AZ-19B546-A). | S | |
| Differential Gear Oil | Ford Conventional and Traction-Lok Differential,Semi and Ful | 7.50 PTS. | 3.54 L | Rear Axle Gear Oil | Add 4 oz. of EST-M2C118-A Friction Modifier (C8AZ-19B546-A). | S | |
| Engine Coolant | 5.8L Eng,Standard Trans | Standard Cooling | 15.70 QTS. | 14.85 L | 50/50 mixture of FORD Premium Cooling System Fluid and water | S | |
| Engine Coolant | 5.8L Eng | w/Air Cond | 16.40 QTS. | 15.52 L | 50/50 mixture of FORD Premium Cooling System Fluid and water | S | |
| Engine Coolant | 5.8L Eng | w/Super Cooling or Super Cooling w/A/C | 18.00 QTS. | 17.03 L | 50/50 mixture of FORD Premium Cooling System Fluid and water | S | |
| Engine Oil | 5.8L Eng | w/Filter | 6.00 QTS. | 5.67 L | SAE 5W-20 Premium Synthetic Blend Motor Oil | Refer to Engine Oil recommended applications for SAE 5W-20 and 5W-30 motor oils TSB No. 02-1-9. | S |
| Engine Oil | 5.8L Eng | w/o Filter | 5.00 QTS. | 4.73 L | SAE 5W-20 Premium Synthetic Blend Motor Oil | Refer to Engine Oil recommended applications for SAE 5W-20 and 5W-30 motor oils TSB No. 02-1-9. | S |
| Manual Transmission Fluid | Overdrive | 3.40 QTS. | 3.21 L | Automatic Transmission Fluid MERCON | S | ||
| Transfer Case Fluid | 2.00 QTS. | 1.89 L | Automatic Transmission Fluid MERCON | Add an additional 4.1 qts. if a Transfer Case mounted PTO is used. | S | ||
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.