The Toyota 4Runner is a rugged and reliable SUV, well-known for its off-road capabilities and long-term durability. To keep it running smoothly, one of the most important maintenance tasks is taking care of the transmission fluid. Using the correct type and filling to the right capacity ensures smoother shifting, protects internal components, and helps extend the life of your transmission. This guide covers the Toyota 4Runner transmission fluid capacity for different model years and transmissions, along with fluid type recommendations and DIY service tips.
Quick Answer – Transmission Fluid Capacity
- 1996–2002 Toyota 4Runner (A340F 4-speed automatic): ~2–3 quarts (drain & fill), ~8.2–8.8 quarts (full fill) – Dexron III / Toyota ATF Type T-IV
- 2003–2009 Toyota 4Runner (A750F 5-speed automatic): ~3.7–4 quarts (drain & fill), ~11.5–12 quarts (full fill) – Toyota WS ATF
- 2010–Present Toyota 4Runner (A750F / AC60E 5- & 6-speed automatic): ~3.5–4.5 quarts (drain & fill), ~10–12 quarts (full fill) – Toyota WS ATF
Recommended Transmission Fluids
- Toyota Genuine ATF WS – Official OEM fluid required for 2003+ 4Runner models.
- ACDelco Dexron VI ATF – Compatible with older Dexron III requirements (1996–2002 models).
- Castrol Transmax Import Multi-Vehicle ATF – Compatible with Toyota WS and Dexron III specifications, making it a versatile alternative.
Why Transmission Fluid Matters
Transmission fluid is more than just a lubricant—it helps with hydraulic pressure, cooling, and smooth shifting. Using the wrong fluid or incorrect capacity can cause:
- Slipping gears or harsh shifting
- Overheating under load or towing
- Premature wear and possible transmission failure
That’s why Toyota specifies Dexron III or Toyota T-IV for older models, and Toyota WS ATF for 2003 and newer models.
DIY Transmission Fluid Change – Basic Steps
If you plan to change your 4Runner’s transmission fluid yourself, here’s a step-by-step outline:
- Warm up the engine and transmission with a short drive.
- Lift the vehicle securely using jack stands or a lift.
- Place a drain pan under the transmission and remove the drain plug.
- Allow fluid to drain fully, then reinstall the plug with a new gasket.
- Remove the transmission pan (if replacing filter/screen) and clean thoroughly.
- Refill with the correct fluid through the fill plug (WS models) or dipstick tube (older models).
- Start the engine, cycle through all gears, and check the fluid level at operating temperature.
Toyota 4Runner Transmission Fluid Capacity by Year
| Model Years | Transmission | Drain & Fill | Full Capacity | Fluid Type |
|---|---|---|---|---|
| 1996–2002 | A340F (4-speed automatic) | ~2–3 quarts | ~8.2–8.8 quarts | Dexron III / Toyota T-IV |
| 2003–2009 | A750F (5-speed automatic) | ~3.7–4 quarts | ~11.5–12 quarts | Toyota WS |
| 2010–Present | A750F / AC60E (5/6-speed automatic) | ~3.5–4.5 quarts | ~10–12 quarts | Toyota WS |
FAQ Section
How often should I change transmission fluid in a Toyota 4Runner?
Toyota considers ATF “lifetime fill” on newer models, but many experts and owners recommend changing it every 60,000–100,000 miles for longevity—especially if towing or off-roading.
Can I use Dexron VI in my Toyota 4Runner?
Only for older 4Runners that originally specified Dexron III. For 2003 and newer, always use Toyota WS or a compatible equivalent.
Does the Toyota 4Runner have a transmission dipstick?
Models up to 2009 typically have a dipstick for checking fluid. Most 2010+ 4Runners use a sealed transmission without a traditional dipstick.
How much fluid is replaced in a drain & fill?
Usually 2–5 quarts depending on model year. A full fluid exchange requires ~10–12 quarts.
What happens if I overfill transmission fluid?
Overfilling can lead to foaming, overheating, and shifting issues. Always measure carefully and check at operating temperature.
Conclusion
The Toyota 4Runner transmission fluid capacity ranges from 8 to 12 quarts, depending on the year and transmission. Older 4Runners (1996–2002) use Dexron III or Toyota T-IV, while all 2003+ models require Toyota WS ATF. A drain and fill usually replaces 3–4 quarts, while a full capacity change requires the total fill. Sticking with the correct fluid ensures smooth shifting, cooler operation, and long-lasting reliability. Order Toyota WS ATF today and keep your 4Runner’s transmission protected.
Leave A Reply