Mobil ATF 3309 - Premium Automatic Transmission Fluid

Purpose and Specifications

Mobil ATF 3309 is a high-performance automatic transmission fluid engineered for slip-controlled lock-up automatic transmissions. This premium fluid keeps your transmission running smoothly, quietly, and efficiently across all driving conditions.

What This Fluid Does:

• Provides smooth, quiet gear shifts without jerking or hesitation
• Reduces transmission shudder and vibration during acceleration
• Protects internal transmission parts from wear, extending transmission life
• Maintains consistent performance in both cold winter starts and hot summer driving
• Resists foaming and maintains stable lubrication under pressure
• Protects against rust and corrosion inside the transmission

Operating Temperature Range: Performs reliably from -40°C (cold starts) to over 185°C (high-temperature operation)

Fluid Color: Bright red (helps identify leaks and fluid condition)

When to Use / Replace?

Check your vehicle's owner manual for the exact replacement interval, as this varies by manufacturer. Most automatic transmissions require fluid changes every 40,000 to 100,000 kilometers or every 2 to 5 years, whichever comes first. Some modern transmissions are sealed and may not require regular changes.

Use Mobil ATF 3309 if your vehicle requires:

• JWS 3309 specification (Aisin-Warner transmissions)
• GM 9986195 quality level
• Toyota T-IV, T4, T-III, or T3 fluid

Always consult your owner's manual to confirm compatibility before purchasing.

Frequently Asked Questions

Q: Can I mix Mobil ATF 3309 with other transmission fluids?
A: No. Always use the exact fluid type specified in your owner's manual. Mixing different transmission fluids can damage your transmission. If you need to top up, use the same fluid already in your transmission.

Q: How do I know if my transmission fluid needs changing?
A: Check the fluid color and smell. Fresh fluid is bright red and odorless. Dark brown or black fluid with a burnt smell indicates it needs replacement. Also follow your vehicle manufacturer's recommended service intervals.

Q: Is this fluid suitable for all automatic transmissions?
A: No. This fluid is specifically designed for certain slip-controlled lock-up automatic transmissions. Using the wrong fluid can cause transmission problems. Always verify the specification in your owner's manual before purchasing.