2022 Volvo VNR Transmission Fluid & Service Guide

Quick Answer

• Transmission Make/Model: Volvo I-Shift (AT2612F, AT2812F, ATO2612F, ATO2812F depending on configuration)
• OEM Fluid Spec: Volvo Transmission Fluid 97343 (equivalent to SAE 75W-80 or 80W)
• Drain & Fill Capacity: Approximately 13-16 liters (13.7-16.9 US quarts), varies by model. Always check dipstick/level plug.
• Full Overhaul Capacity: Approximately 17-20 liters (17.9-21.1 US quarts), varies by model. Always refer to service manual.
• Filter OEM Part Number: No traditional external filter to replace. It uses an internal screen/magnet that is typically not a service item for fluid changes.
• Recommended Service Interval: Up to 360,000 miles (600,000 km) or 36 months under normal conditions. Severe duty/towing may reduce this.

Fluid Type Explained: Volvo I-Shift Transmission Fluid 97343

The 2022 Volvo VNR is equipped with the highly advanced Volvo I-Shift automated manual transmission. Unlike traditional automatic transmissions that use Automatic Transmission Fluid (ATF), the I-Shift is an automated manual transmission and utilizes a specialized transmission fluid. Volvo specifies their own Volvo Transmission Fluid 97343. This is a high-performance, synthetic gear oil designed to meet the unique lubrication requirements of the I-Shift, ensuring optimal shifting performance, wear protection, and fuel efficiency.

It's crucial to use only genuine Volvo Transmission Fluid 97343 or a fluid that explicitly states it meets this specification. Using an incorrect fluid can lead to premature wear, poor shift quality, and potential damage to the sophisticated internal components of the I-Shift transmission. Always verify the exact fluid specification for your specific VNR model with your Volvo dealer or the latest service manual, as specifications can sometimes be updated.

While commonly described as an SAE 75W-80 or 80W equivalent gear oil, the "97343" specification signifies a very specific additive package and viscosity profile developed by Volvo for their I-Shift transmissions. Do not substitute with generic gear oils unless they explicitly state compliance with Volvo 97343.

Service Procedure: Drain & Fill vs. Full Exchange

The Volvo I-Shift transmission typically undergoes a drain and fill procedure during routine maintenance. There is no traditional "full flush" method akin to what might be performed on a conventional torque-converter automatic transmission due to its design as an automated manual transmission.

Drain and Fill Procedure (General Steps - Always refer to the official Volvo Service Manual):

1. Preparation: Park the vehicle on a level surface, engage the parking brake, and ensure the transmission is at operating temperature to allow for better fluid drainage. Place a suitable drain pan under the transmission.
2. Drain Fluid: Locate the drain plug on the bottom of the transmission case. Carefully remove it and allow the old fluid to drain completely. Be cautious as the fluid may be hot.
3. Inspect: While the fluid is draining, inspect the drain plug for any metallic particles, which could indicate internal wear. The I-Shift often has a magnet integrated into the drain plug or within the case to capture metallic debris.
4. Replace Drain Plug: Once drained, reinstall the drain plug, ensuring the sealing washer is in good condition and torqued to the manufacturer's specifications.
5. Refill Fluid: Locate the fill plug (often on the side of the transmission). Using a fluid pump or appropriate dispensing equipment, begin adding the specified Volvo Transmission Fluid 97343. Add fluid until it begins to trickle out of the fill plug opening. This indicates the correct level for a drain and fill.
6. Check Level: For transmissions with a fill level plug/sight glass, the fluid should be at the correct level when it starts to drip from the fill hole, or is visible in the sight glass at the specified mark. Some I-Shift models may have specific level checking procedures or require diagnostic tools for precise level checks. Always consult the service manual.
7. Final Checks: Reinstall the fill plug, ensuring proper torque. Start the engine, check for leaks, and cycle through the gears briefly (with the parking brake engaged) to ensure proper fluid circulation. Recheck for leaks after a short drive.

Filter: The Volvo I-Shift does not typically use a replaceable external spin-on filter like many automatic transmissions. Instead, it relies on internal screens and magnets to capture debris. These are generally not serviced during a routine fluid change. Excessive debris found on the drain plug magnet or in the fluid could indicate internal issues requiring further inspection by a qualified technician.

Service Interval: Normal vs. Severe Duty

Volvo provides comprehensive service intervals for the I-Shift transmission, which are generally quite long due to the use of synthetic fluid and the robust design of the transmission.

• Normal Duty: For typical highway transport operations with regular loads and minimal excessive idling, the recommended service interval for the Volvo I-Shift is generally up to 360,000 miles (600,000 km) or 36 months, whichever comes first. Always refer to your specific vehicle's maintenance schedule in the owner's manual or service manual, as these can vary slightly by model year and specific I-Shift variant.

• Severe Duty / Towing: Conditions considered severe duty include frequent heavy hauling, continuous operation in stop-and-go traffic, extensive idling, operation in extreme temperatures (very hot or very cold), hilly terrain, or continuous operation with a higher gross vehicle weight (GVW) close to the maximum rating. In such cases, Volvo recommends shortening the service interval. While not always explicitly stated as a fixed reduction (e.g., "half the normal interval"), it