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.
1991 Geo Prizm LSi, StandardFACTORY 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 | 5.80 QTS. | 5.48 L | Automatic Transmission Fluid DEXRON VI | Refer to TSB No. 04-07-30-037C, Date of Issue: April 11, 2007. | S | ||
| Brake Fluid | N/A | N/A | DOT 3 Brake Fluid | S | |||
| Engine Coolant | 5.80 QTS. | 5.48 L | 50/50 mixture of Ethylene Glycol Base Antifreeze and water | GM Specification 1825-M. | S | ||
| Engine Oil | w/Filter | 3.90 QTS. | 3.69 L | SAE 5W-30 (Below 50Deg.F), 10W-30 (Above 0Deg.F) | Use oil that has been certified by the American Petroleum Institute. | S | |
| Engine Oil | w/o Filter | 3.60 QTS. | 3.4 L | SAE 5W-30 (Below 50Deg.F), 10W-30 (Above 0Deg.F) | Use oil that has been certified by the American Petroleum Institute. | S | |
| Fuel Tank | 13.20 GALS. | 49.96 L | S | ||||
| Manual Transmission Fluid | 2.70 QTS. | 2.55 L | Multipurpose Gear Oil or API - GL-4 or GL-5, SAE 75W-90 | S | |||
| Windshield Washer Fluid | N/A | N/A | Optikleen Windshield Washer Fluid | Follow the Manufacturer's Instructions for the mixture ratio. | S | ||
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.