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MODELS VERIFIED: 3
SOURCE: Indian Motorcycle Official Owner’s Manuals
Indian — Master Oil, Tire Pressure & OEM Part Spec Chart (3 Models)
Scout Bobber, Chief Dark Horse (Thunderstroke 116) & Challenger PowerPlus
INDIAN LUBRICATION & WRENCHING ARCHITECTURE
Unlike Harley-Davidson’s separate 3-hole fluids, modern Indian V-twins utilize a semi-dry-sump shared-lubrication crankcase where a single JASO MA/MA2 oil lubricates the engine, wet multiplate clutch, and transmission. Liquid-cooled Scout and PowerPlus 108 Challenger engines specify SAE 15W-60 JASO MA2 full-synthetic oil, while the air-cooled 1,890cc Thunderstroke 116 (Chief Dark Horse) specifies SAE 20W-40—and features dual sump drain plugs that must both be removed during every oil change.
Indian Quick-Reference Fluid & Tire Matrix
| Model (Years) | Genre | Oil w/ Filter | Grade · JASO · Filter | Cold PSI (F/R) | Seat · Wet Wt |
|---|---|---|---|---|---|
|
Scout Bobber (1133 Liquid-Cooled)
2018–2024 · 1133cc
|
Cruiser & Bobber | 3.6 L (3.80 qt) | SAE 15W-60 · JASO MA2 Indian 2521421 |
36 / 40 PSI 248/276 kPa |
649 mm 252 kg |
|
Challenger Limited / Dark Horse (PowerPlus 108)
2020–Present · 1768cc
|
Tourer, Bagger & Sport-Tourer | 4.7 L (4.97 qt) | SAE 15W-60 · JASO MA2 Indian 2521421 |
36 / 41 PSI 248/283 kPa |
672 mm 381 kg |
|
Chief Dark Horse (Thunderstroke 116)
2022–Present · 1890cc
|
Cruiser & Bobber | 5.7 L (6.02 qt) | SAE 20W-40 · JASO MA Indian 2521421 |
36 / 40 PSI 248/276 kPa |
662 mm 304 kg |
Indian Individual Motorcycle Spec Sheets
Open in 3-Step Finder →
Indian · 2018–2024
JASO MA2
Scout Bobber (1133 Liquid-Cooled)
1,133cc Liquid-Cooled 60° V-Twin DOHC 8-Valve Muscle Bobber (Unit Semi-Dry Sump)
Oil 3.6L (3.80qt)
SAE 15W-60
36/40 PSI
649mm
Indian · 2020–Present
JASO MA2
Challenger Limited / Dark Horse (PowerPlus 108)
1,768cc Liquid-Cooled 60° V-Twin SOHC 8-Valve PowerPlus 108 Frame-Fairing Bagger
Oil 4.7L (4.97qt)
SAE 15W-60
36/41 PSI
672mm
Indian · 2022–Present
JASO MA
Chief Dark Horse (Thunderstroke 116)
1,890cc Air-Cooled 49° V-Twin OHV 3-Cam Pushrod Thunderstroke 116 (Unit Sump)
Oil 5.7L (6.02qt)
SAE 20W-40
36/40 PSI
662mm
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