Husqvarna HUV 4421-G / GXP Owner's Manual page 55

Vehicle Specifications
SPECIFICATIONS
HUV 4421 HUV 4421
2 gal.
Engine coolant: mixture of 55% propylene glycol and 45% water n/a
(7.8 L)
Brake fluid: DOT 5 (silicone) brake fluid 8 oz. (240 ml)
6.5 gallons
Fuel tank: unleaded gasoline
(24.6 L)
6.5 gallons
Fuel tank: diesel grade no.2 with cetane rating of 45 or higher
(24.6 L)
TIRE PRESSURE
All-terrain tread and mud tires 20 - 22 psi (1.38 - 1.52 Bars)
2007 HUV 4421 Gasoline and Diesel Vehicle Owner's Manual Page 53