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.
1990 Isuzu Impulse AutomaticFACTORY OEM SERVICE PROCEDURE
Quick Lookups: Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Refrigerant | 1.69 LBS. | 0.76 KG | R-12 | S | |||
| Automatic Transmission Fluid | 7.00 QTS. | 6.62 L | Automatic Transmission Fluid DEXRON II | S | |||
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | Fill to "max" line on the reservoir. | S | ||
| Engine Coolant | 7.30 QTS. | 6.9 L | 50/50 mixture of Ethylene Glycol Antifreeze and water | S | |||
| Engine Oil | w/Filter | 4.60 QTS. | 4.35 L | API - SAE 5W-20, 10W-30 (Below 100Deg.F), 15W-40, 20W-40/50 (Above 5Deg.F) | S | ||
| Engine Oil | w/o Filter | 4.00 QTS. | 3.78 L | API - SAE 5W-20, 10W-30 (Below 100Deg.F), 15W-40, 20W-40/50 (Above 5Deg.F) | S | ||
| Fuel Tank | 12.40 GALS. | 46.93 L | S | ||||
| Manual Transmission Fluid | 2.00 QTS. | 1.89 L | Areas with temperatures of (90Deg.F and higher) SAE 5W-40, 12W-40/50. Other areas SAE 5W-30 SF | S | |||
| Power Steering Fluid | N/A | N/A | Automatic Transmission Fluid DEXRON or DEXRON II | S | |||
Factory Service Tools
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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.
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