Indian Challenger Dark Horse 108 / 112 (PowerPlus) — OEM Fluid, Tire Pressure & Maintenance Specs
1,768cc / 1,834cc Liquid-Cooled 60° V-Twin SOHC 8-Valve PowerPlus 108 / 112 · Source: Indian Challenger Dark Horse 108 / 112 (PowerPlus) (2020–Present) Official Owner’s Manual Maintenance Specifications
According to the Indian Challenger Dark Horse 108 / 112 (PowerPlus) (2020–Present) Official Owner’s Manual Maintenance Specifications, the 2020–Present Indian Challenger Dark Horse 108 / 112 (PowerPlus) (chassis PowerPlus 108/PowerPlus 112 (2025+)) requires 4.5 L (4.76 US qt) of SAE 15W-60 (JASO MA2, Indian Full Synthetic 15W-60 JASO MA2) engine oil for a drain-only change and 4.7 L (4.97 US qt) with filter service (Indian 2521421 / HF198). Standard solo cold tire pressure is 248 kPa / 2.48 bar / 36 PSI front (130/60B19 66H) and 283 kPa / 2.83 bar / 41 PSI rear (180/60R16 80H), paired with 2× NGK MR8F /REA8MCX spark plug(s) and a YTX14AH-BS / YIX20HL battery.
Drain only: 4.5 L (4.76 US qt)
R 283 kPa (2.83 bar)
Est. Range: ~375 km (233 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 15W-60 · JASO MA2 · Indian Full Synthetic 15W-60 JASO MA2 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 4.5 L (4.76 US qt) • With filter/strainer: 4.7 L (4.97 US qt) • Complete dry overhaul: 5.7 L (6.02 US qt) |
| OEM Oil Filter Code & Type | Indian 2521421 / HF198 |
| Correct Oil Level Check Method | Upright on level ground; screw dipstick ALL THE WAY IN, then remove to read level |
| Oil Drain Bolt Torque | 20 N·m (14.8 lb-ft / 2.04 kgf·m) — Use fresh crush washer |
2. Cold Tire Pressures, Wheels, Ignition & Drivetrain
| Front / Rear OEM Tire Sizes | Front: 130/60B19 66H · Rear: 180/60R16 80H (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 248 kPa / 2.48 bar / 36 PSI Rear: 283 kPa / 2.83 bar / 41 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 248 kPa / 2.48 bar / 36 PSI Rear: 290 kPa / 2.90 bar / 42 PSI |
| OEM Spark Plug & Quantity | NGK MR8F /REA8MCX × 2 (Gap: 0.8 mm) |
| OEM Battery Code & Rating | YTX14AH-BS / YIX20HL (12V 12–18Ah Heavy-Duty AGM) |
| Final Drive Maintenance | Carbon/Aramid Reinforced Secondary Belt — Inspect belt deflection and pulley debris |
| Brake Fluid & Coolant | DOT 4 · OAT ethylene-glycol coolant for aluminum radiators (50:50 premix) |
3. Ergonomics, Range & Scheduled Service Intervals
| Displacement · Max Power · Peak Torque | 1834 cc · 126 hp @ 5,500 rpm · 181 N·m (133.5 lb-ft) @ 3,600 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 672 mm (26.5 in) · 381 kg (840 lbs) |
| Fuel Tank & Est. Real-World Range | 22.7 L (6.0 US gal) · ~16.5 km/L → ~375 km (233 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 800 km • Engine Oil / Filter: 8,000 km / 8,000 km • Air Filter / Spark Plug: 24,000 km / 32,000 km • Valve Clearance Check: 32,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Pairing a frame-mounted fairing, inverted fork, and radial Brembos in blacked-out trim, the Challenger Dark Horse added the 1,834cc PowerPlus 112 (126 hp) option for 2025.
Oil & Clutch Mechanical Engineering Note
Draining via dual crankcase plugs, the PowerPlus 108/112 shares 4.7 L of SAE 15W-60 JASO MA2 synthetic oil verified upright with the dipstick threaded fully in.