2017 Toyota Tacoma Coolant Capacity & Type

Your 2017 Toyota Tacoma's cooling system holds approximately 10.3 quarts (9.8 liters) of coolant.

Quick Answer

• Total Cooling System Capacity: Approximately 10.3 quarts (9.8 liters)
• OEM Coolant Specification: Toyota Super Long Life Coolant (SLLC) - Pink, HOAT (Hybrid Organic Acid Technology) or a compatible equivalent.
• Mix Ratio: 50/50 Pre-diluted (do not add water if using pre-diluted) or 50/50 concentrate mixed with distilled water.

Capacity by Engine Option

The 2017 Toyota Tacoma was offered with two engine options, and their cooling system capacities are slightly different:

Flush Interval

Maintaining your coolant is crucial for the longevity of your engine. Toyota recommends the following flush intervals for your 2017 Tacoma:

• Normal Duty: The initial coolant change is recommended at 100,000 miles (160,000 km) or 120 months. After the initial change, replace every 50,000 miles (80,000 km) or 60 months.
• Severe Duty: If your vehicle is subjected to severe conditions (e.g., heavy towing, extreme temperatures, dusty environments), it's wise to inspect your coolant more frequently and consider changing it every 30,000 miles (48,000 km) or 36 months, or as recommended by a trusted mechanic.

How to Refill & Bleed

Refilling and bleeding your Tacoma's cooling system properly is essential to prevent air pockets, which can lead to overheating. Always perform this process with the engine cool.

1. Drain the old coolant: Locate the drain plug on the bottom of the radiator and open it. Also, open the petcock on the engine block if accessible to ensure a more complete drain. Catch all old coolant in a suitable container for proper disposal.
2. Flush (optional but recommended): If you're switching coolant types or if the old coolant was very dirty, consider flushing the system with distilled water until it runs clear. Avoid using chemical flush products unless absolutely necessary, and only if specifically designed for your vehicle's cooling system materials.
3. Close drain plugs: Ensure both the radiator and engine block drain plugs are securely closed.
4. Refill with new coolant: Slowly fill the radiator with the correct Toyota Super Long Life Coolant (SLLC) or compatible alternative. Fill the overflow reservoir to the "COLD" or "LOW" mark.
5. Bleeding the system:
   • Start the engine with the radiator cap off (or loosely fitted) and the heater on full blast (hot). This helps open the heater core valve and allows coolant to circulate through the entire system.
   • As the engine warms up, add coolant as needed to keep the radiator full. You'll likely see air bubbles escaping. Gently squeeze the upper and lower radiator hoses to help dislodge air pockets.
   • Some 2017 Tacomas, especially the 3.5L V6, might have a bleeder valve on the highest point of the cooling system (often near the thermostat housing or on a heater hose). If present, open this valve until a steady stream of coolant emerges, then close it.
   • Continue this process until no more air bubbles appear, and the coolant level stabilizes. Install the radiator cap.
6. Final check: Drive the vehicle until it reaches operating temperature. After it cools down completely, recheck the coolant level in the overflow reservoir and top off if necessary. Monitor the coolant level over the next few days to ensure no air pockets remain.

Note: A vacuum-fill tool is the most efficient way to refill and bleed a cooling system, especially on vehicles prone to air pockets. If you're uncomfortable with this process, consult a professional.

Common Cooling System Issues for the 2017 Toyota Tacoma (3rd Generation)

The 3rd Generation Tacoma, while generally reliable, can experience some cooling system quirks:

• Water Pump Leaks: While not extremely common at lower mileages, some owners have reported water pump leaks developing, particularly around 60,000-100,000 miles. Keep an eye out for pink crusty residue (dried coolant) around the pump.
• Thermostat Issues: A faulty thermostat can lead to either overheating (if stuck closed) or the engine running too cool (if stuck open). Symptoms include fluctuating temperature gauges or slow engine warm-up.
• Radiator Leaks: Radiators can develop leaks over time, often due to road debris or age. Inspect for visible cracks or coolant stains on the radiator fins.
• Coolant Hoses: Hoses can degrade, become brittle, or soften over time, leading to leaks. Regularly inspect hoses for bulges, cracks, or softness.
• Air Pockets: As mentioned, the 3.5L V6 can sometimes be a bit challenging to bleed completely, leading to persistent air pockets that can cause localized hot spots and potential overheating if not addressed.

Find a trusted shop on Repairius.