PDF Manuals
3,300 manuals

Harley-Davidson Street Glide (2010-2021) — Maintenance Specs

The Street Glide (FLHX) is Harley's batwing-faired bagger built on the Touring chassis. Two engines split this range: the Twin Cam 103 (2010-2016, 3.8 L oil with filter) and the Milwaukee-Eight 107 (2017-2020, 4.5 L with filter, stiffer frame, taller gearing, LED lighting options); a further update landed in 2021 outside the manuals used here. Both generations share the 22.7 L tank, 36/40 psi Dunlop fitments, DOT 4 brake fluid and the 5,000-mile oil cadence with a two-year/30,000-mile plug interval. The M8's plug gap tightened to 0.80-0.90 mm with a lower 9.5-12.2 N·m torque. Official figures come from H-D's Service Information Portal owner's manuals for 2015 and 2019.

Quick specs

Oil capacity (with filter) 3.8 Lengine oil with filter, approx (4.0 US qt) - Twin Cam 103, 2010-2016 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Oil type Harley-Davidson H-D 360 (Screamin' Eagle SYN3 full synthetic acceptable) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Oil viscosity SAE 20W-50 (H-D 360 preferred; SYN3 acceptable) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Front tire pressure (solo) 36 psi248 kPa cold 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Rear tire pressure (solo) 40 psi276 kPa cold 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Spark plug H-D 6R12 (2010-2016 Twin Cam)12 mm; plug type not printed for Milwaukee-Eight in OM 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Spark plug gap 0.97-1.09 (Twin Cam) / 0.80-0.90 (Milwaukee-Eight) mm 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Fuel capacity 22.7 L6.0 US gal 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)

Maintenance schedule

Specification Value Source
Engine oil & filter 1,000 mi first service, then every 5,000 mi (8,000 km)engine oil and filter 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Spark plug replacement every 30,000 mi (48,000 km) or 2 years 2019 Harley-Davidson Owner's Manual: Touring Models, 94000687 (H-D Service Information Portal)
Brake fluid change every 2 years 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)

Fluids & capacities

Specification Value Source
Oil capacity (with filter) 3.8 Lengine oil with filter, approx (4.0 US qt) - Twin Cam 103, 2010-2016 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Oil type Harley-Davidson H-D 360 (Screamin' Eagle SYN3 full synthetic acceptable) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Oil viscosity SAE 20W-50 (H-D 360 preferred; SYN3 acceptable) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Final drive oil transmission 0.95 L (1.00 qt); primary chaincase 1.3 L (1.4 qt) on 2010-2016; primary 1.0 L (34 oz) on 2017-2020 Lapproximate 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Coolant capacity 1 LTwin-Cooled models only (1.1 US qt) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Brake fluid type (DOT) DOT 4 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Fuel capacity 22.7 L6.0 US gal 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)

Torque specs

Specification Value Source
Spark plug 16.3-24.4 (TC) / 9.5-12.2 (M8) Nu00b7m 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)

Electrical

Specification Value Source
Battery 12V, 28 Ah, 405 CCA, sealed maintenance-free 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Spark plug H-D 6R12 (2010-2016 Twin Cam)12 mm; plug type not printed for Milwaukee-Eight in OM 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Spark plug gap 0.97-1.09 (Twin Cam) / 0.80-0.90 (Milwaukee-Eight) mm 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)

Tires & wheels

Specification Value Source
Front tire size 130/60B19, Dunlop D408FFLHX/FLHXS 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Rear tire size 180/65B16, Dunlop D407T 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Front tire pressure (solo) 36 psi248 kPa cold 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)
Rear tire pressure (solo) 40 psi276 kPa cold 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal)

Official manual

Owner's manual on Harley-Davidson official site

Opens the manufacturer’s official website in a new tab.

Frequently asked questions

How much oil does a Street Glide take?
3.8 L (4.0 qt) with filter on the 2010-2016 Twin Cam 103; 4.5 L (4.75 qt) on the 2017-2020 Milwaukee-Eight 107.
What is the Street Glide tire pressure?
36 psi front / 40 psi rear (248/276 kPa) cold on the 19-inch front fitment.
What oil does a Street Glide use?
H-D 360 SAE 20W-50 is the preferred oil under normal conditions; SYN3 20W-50 full synthetic is acceptable.
How often does a Street Glide need an oil change?
First at 1,000 miles, then every 5,000 miles (8,000 km) - per the official maintenance schedule.

Sources

Value Source Checked
Oil capacity (with filter): 3.8 L 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Oil type: Harley-Davidson H-D 360 (Screamin' Eagle SYN3 full synthetic acceptable) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Engine Lubrication, oil recommendation chart) 2026-11-03
Oil viscosity: SAE 20W-50 (H-D 360 preferred; SYN3 acceptable) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Final drive oil: transmission 0.95 L (1.00 qt); primary chaincase 1.3 L (1.4 qt) on 2010-2016; primary 1.0 L (34 oz) on 2017-2020 L 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Coolant capacity: 1 L 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Brake fluid type (DOT): DOT 4 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Fuel capacity: 22.7 L 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Engine oil & filter: 1,000 mi first service, then every 5,000 mi (8,000 km) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Spark plug replacement: every 30,000 mi (48,000 km) or 2 years 2019 Harley-Davidson Owner's Manual: Touring Models, 94000687 (H-D Service Information Portal) (p. Specifications pp. 28-30; Capacities Table 11) 2026-11-03
Brake fluid change: every 2 years 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Spark plug: 16.3-24.4 (TC) / 9.5-12.2 (M8) Nu00b7m 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Battery: 12V, 28 Ah, 405 CCA, sealed maintenance-free 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Spark plug: H-D 6R12 (2010-2016 Twin Cam) 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Spark plug gap: 0.97-1.09 (Twin Cam) / 0.80-0.90 (Milwaukee-Eight) mm 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Front tire size: 130/60B19, Dunlop D408F 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Rear tire size: 180/65B16, Dunlop D407T 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Front tire pressure (solo): 36 psi 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Rear tire pressure (solo): 40 psi 2015 Harley-Davidson Owner's Manual: Touring Models, 99466-15 (H-D Service Information Portal) (p. Specifications pp. 22-30; Capacities Table 12) 2026-11-03
Spotted an error? Tell us