2018 Toyota Corolla Fluid Type Specs
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As an ASE-certified master technician, I've compiled this comprehensive fluid specification sheet for the 2018 Toyota Corolla. Adhering to manufacturer specifications is paramount for the longevity and optimal performance of your vehicle. Always consult your owner's manual for the most accurate and up-to-date information, as specifications can sometimes vary by trim level or region.
Quick reference
| Fluid | Type/Spec | Capacity |
|---|---|---|
| Engine Oil | SAE 0W-20, API SN or SP synthetic | 4.4 quarts (with filter) |
| Engine Coolant | Toyota Super Long Life Coolant (SLLC) - Pink | ~6.9-7.2 quarts |
| Transmission Fluid | Toyota Genuine ATF WS | ~6.5-7.0 quarts (drain/fill) |
| Brake Fluid | DOT 3 or DOT 4 | As needed |
| Power Steering | Electric Power Steering (No fluid) | N/A |
| Washer Fluid | Toyota Genuine Windshield Washer Fluid or equivalent | ~2.5 quarts |
Engine Oil
For the 2018 Toyota Corolla, the factory specification for engine oil is SAE 0W-20. It is crucial to use oil that meets or exceeds API SN or the newer API SP standards, and it should be a full synthetic formulation. The capacity for an oil change with a filter is approximately 4.4 quarts (4.2 liters).
Intervals and Pitfalls: Toyota recommends oil changes typically every 10,000 miles or 12 months, whichever comes first, under normal driving conditions. However, if you frequently drive in severe conditions (e.g., short trips, extreme temperatures, towing, dusty roads), consider shortening this interval to every 5,000 miles or 6 months. Using an oil with the incorrect viscosity or a conventional oil instead of synthetic can lead to increased engine wear and reduced fuel efficiency. Always ensure the oil you choose carries the appropriate API certifications.
Engine Coolant
The 2018 Toyota Corolla utilizes Toyota Super Long Life Coolant (SLLC), which is a pre-diluted (50/50 mix) pink-colored, phosphate-hybrid organic acid technology (P-HOAT) coolant. It is designed for extended service intervals and excellent corrosion protection. The total cooling system capacity is approximately 6.9 to 7.2 quarts (6.5 to 6.8 liters), depending on the specific engine and model.
Intervals and Pitfalls: Toyota SLLC has a very long service life, typically 10 years or 100,000 miles for the first change, and then every 5 years or 50,000 miles thereafter. A critical pitfall is mixing different types of coolants. Never mix Toyota SLLC with conventional green or other colored coolants (e.g., HOAT, OAT without phosphates), as this can lead to chemical reactions that form precipitates, clog the cooling system, and cause severe engine damage. Always use Toyota SLLC or an equivalent that explicitly states compatibility with Toyota's pink SLLC specification.
Transmission Fluid
Your 2018 Toyota Corolla, equipped with an automatic transmission (CVT), requires Toyota Genuine ATF WS (World Standard) transmission fluid. This is a highly specialized fluid designed specifically for Toyota
More specs for the 2018 Toyota Corolla
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2018 Toyota Corolla Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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