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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2018 Toyota Prius Two Eco
Quick Lookups: Fluids
2018 Toyota Prius Two EcoSECTION Fluids
| FLUID CAPACITIES | |||||||
|---|---|---|---|---|---|---|---|
| Fluid Type | Application | Standard | Metric | Fluid Spec | Note | S/H | |
| Air Cond Compressor Oil | 4.50 OZS. | 0.13 L | POE ND-OIL 11 | S | |||
| Air Cond Refrigerant | 1.04 LBS. | 0.47 KG | HFC-134a (R-134a) | Approximate capacity. | S | ||
| Automatic Transmission Fluid | Drain and Refill | 3.80 QTS. | 3.59 L | TOYOTA Genuine Automatic Transmission Fluid Type WS | Using transmission fluid other than TOYOTA Genuine ATF WS may cause deterioration in shift quality, locking up of your transmission acompanied by vibration, and ultimately damage the transmission of your vehicle. The fluid capacity is the quantity of reference. | S | |
| Brake Fluid | N/A | N/A | SAE J1703 or FMVSS No. 116 DOT 3 | S | |||
| Engine Coolant | Gasoline engines | 6.30 QTS. | 5.96 L | TOYOTA Super Long Life Coolant or similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrate and non-borate coolant with long-life hybrid organic acid technology | DO NOT use plain water alone. The fluid capacity is the quantity of reference. | S | |
| Engine Coolant | Power Control Unit | 1.50 QTS. | 1.41 L | TOYOTA Super Long Life Coolant or similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrate and non-borate coolant with long-life hybrid organic acid technology | DO NOT use plain water alone. The fluid capacity is the quantity of reference. | S | |
| Engine Oil | Drain and Refill,w/Filter | 4.40 QTS. | 4.16 L | TOYOTA Genuine Motor Oil. SAE 0W-20 or equivalent ILSAC multigrade oil | SAE 0W-20 is the best choice for good fuel economy and good starting in cold weather. If SAE 0W-20 is not available, SAE 5W-20 oil may be used. However, it must be replaced with SAE 0W-20 at the next oil change. The engine oil capacity is a reference quantity to be used when exchanging. Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and check the oil level on the dipstick. | S | |
| Engine Oil | Drain and Refill,w/o Filter | 4.10 QTS. | 3.88 L | TOYOTA Genuine Motor Oil. SAE 0W-20 or equivalent ILSAC multigrade oil | SAE 0W-20 is the best choice for good fuel economy and good starting in cold weather. If SAE 0W-20 is not available, SAE 5W-20 oil may be used. However, it must be replaced with SAE 0W-20 at the next oil change. The engine oil capacity is a reference quantity to be used when exchanging. Warm up the engine and turn off the hybrid system, wait more than 5 minutes, and check the oil level on the dipstick. | S | |
| Fuel Tank | 11.40 GALS. | 43.15 L | S | ||||
| Windshield Washer Fluid | N/A | N/A | Washer Fluid | In cold areas where temperatures range below the freezing point, use washer fluid containing antifreeze. | 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.