Ducati DesertX Discovery (937) — OEM Fluid, Tire Pressure & Maintenance Specs
937cc Liquid-Cooled 90° L-Twin Testastretta 11° (Factory Crash-Guarded Touring Package) · Source: Ducati DesertX Discovery (937) (2025–Present) Official Owner’s Manual Maintenance Specifications
According to the Ducati DesertX Discovery (937) (2025–Present) Official Owner’s Manual Maintenance Specifications, the 2025–Present Ducati DesertX Discovery (937) (chassis 5A-DC) requires 3.2 L (3.38 US qt) of SAE 15W-50 (JASO MA2, API SM / Shell Advance Ducati 15W-50) engine oil for a drain-only change and 3.6 L (3.80 US qt) with filter service (44440291C / HF159). Standard solo cold tire pressure is 240 kPa / 2.40 bar / 35 PSI front (90/90 - 21 M/C 54V M+S) and 240 kPa / 2.40 bar / 35 PSI rear (150/70 R18 M/C 70V M+S), paired with 2× NGK MAR9A-J spark plug(s) and a YT12B-BS battery.
Drain only: 3.2 L (3.38 US qt)
R 240 kPa (2.40 bar)
Est. Range: ~374 km (232 mi)
1. Engine Lubrication, Filter & Clutch Specifications
| Clutch Architecture | Wet Multi-Plate Manual Clutch NEVER use JASO MB |
|---|---|
| Recommended Viscosity & Grade | SAE 15W-50 · JASO MA2 · API SM / Shell Advance Ducati 15W-50 |
| Oil Volume (Drain / With Filter / Overhaul) |
• Drain only: 3.2 L (3.38 US qt) • With filter/strainer: 3.6 L (3.80 US qt) • Complete dry overhaul: 4 L (4.23 US qt) |
| OEM Oil Filter Code & Type | 44440291C / HF159 |
| Correct Oil Level Check Method | Hold bike upright on level ground 3–5 min after warm shutdown; read crankcase sight glass |
| 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: 90/90 - 21 M/C 54V M+S · Rear: 150/70 R18 M/C 70V M+S (Tubeless) |
|---|---|
| Cold Tire Pressure — Solo Riding |
Front: 240 kPa / 2.40 bar / 35 PSI Rear: 240 kPa / 2.40 bar / 35 PSI |
| Cold Tire Pressure — 2-Up / Loaded Touring |
Front: 250 kPa / 2.50 bar / 36 PSI Rear: 280 kPa / 2.80 bar / 41 PSI |
| OEM Spark Plug & Quantity | NGK MAR9A-J × 2 (Gap: 0.8 mm) |
| OEM Battery Code & Rating | YT12B-BS (12V 10.0Ah Slim MF AGM) |
| Final Drive Maintenance | 525 Heavy-Duty X-Ring Chain — Maintain 25–35 mm slack and lubricate regularly |
| 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 | 937 cc · 110 hp @ 9,250 rpm · 92 N·m (67.9 lb-ft) @ 6,500 rpm |
|---|---|
| Seat Height & Wet Curb Weight | 875 mm (34.4 in) · 232 kg (511 lbs) |
| Fuel Tank & Est. Real-World Range | 21 L (5.5 US gal) · ~17.8 km/L → ~374 km (232 mi) |
| OEM Scheduled Maintenance Intervals |
• First Break-In: 1,000 km • Engine Oil / Filter: 15,000 km / 15,000 km • Air Filter / Spark Plug: 30,000 km / 30,000 km • Valve Clearance Check: 30,000 km |
4. Generation Cutoffs & Real-World Wrenching Gotchas
Model-Year & Chassis Generation Notes
Turnkey 2025 expedition trim bundling reinforced crash bars, radiator/water-pump guards, centerstand, heated grips, touring screen, and Thrilling Black/Red livery.
Oil & Clutch Mechanical Engineering Note
Factory centerstand makes upright sight-glass level checks and 525 chain maintenance straightforward; refill 3.6 L SAE 15W-50 JASO MA2 w/ HF159.