2022 International MV Transmission Fluid & Service Guide
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick Answer
- Transmission Make/Model: Allison 2500 HS (Highway Series) or Allison 2500 RDS (Rugged Duty Series)
- OEM Fluid Spec: Allison TES 668
- Drain & Fill Capacity: Approximately 17-19 quarts (varies based on pan size and cooling system – verify with service manual)
- Full Overhaul Capacity: Approximately 22-24 quarts (verify with service manual)
- Filter OEM Part Number: Verify with dealer or service manual (typically one main filter and one internal filter for Allison 2500 series)
- Recommended Service Interval:
- Normal Duty: 75,000 miles or 36 months
- Severe Duty: 25,000 miles or 12 months
Fluid Type Explained
The 2022 International MV typically utilizes an Allison 2500 series automatic transmission, either the HS (Highway Series) or RDS (Rugged Duty Series). These transmissions demand a fluid that meets the rigorous Allison TES 668 specification. This is a high-performance, heavy-duty automatic transmission fluid designed to deliver superior protection, extended drain intervals, and optimal performance in vocational and medium-duty applications found in the International MV.
Allison TES 668 fluids are engineered to provide excellent thermal stability, shear stability, and wear protection, crucial for the demanding operating conditions these trucks often face. Using a fluid that does not meet the TES 668 specification can lead to premature wear, reduced transmission life, and potentially void your warranty. Always ensure any fluid used states "Allison TES 668" on the label, not just a claim of being "compatible" or "suitable" without meeting the actual specification.
Service Procedure
Maintaining the correct fluid level and quality is paramount for the longevity of your Allison 2500 transmission. There are two primary service procedures: drain & fill and full fluid exchange.
Drain & Fill: This method involves draining the fluid from the transmission pan and replacing it. This typically replaces only a portion of the total fluid (around 70-80%) as a significant amount remains in the torque converter, cooler lines, and cooler itself. For a 2022 International MV, this will usually be in the range of 17-19 quarts. While simpler, it doesn
More specs for the 2022 International MV
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
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
2022 International MV 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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