Section 16 (Engine Lubrication System (H6DO)): General Description: Specification

WARNING: This page is about a different variant/trim than selected.

SPECIFICATION CHART

Lubrication method			Forced lubrication
Oil pump	Pump type		Trochoid type
	Number of teeth	Inner rotor	7
	Number of teeth	Outer rotor	8
	Outer rotor diameter x thickness	mm (in)	86 x 13 (3.39 x 0.51)
	Tip clearance between inner and outer rotors	mm (in)	0.04 - 0.14 (0.0016 - 0.0055)
	Side clearance between inner rotor and pump case	mm (in)	0.020 - 0.046 (0.0008 - 0.0018)
	Case clearance between outer rotor and pump case	mm (in)	0.110 - 0.175 (0.0043 - 0.0069)
Oil filter	Filter type		Full-flow filter type
	Filtration area	cm² (sq in)	1,300 (201.5)
	By-pass valve opening pressure	kPa (kg/cm² , psi)	160 (1.63, 23.2)
	Outer diameter x width	mm (in)	80 x 75 (3.15 x 2.95)
	Installation screw specifications		M 20 x 1.5
Relief valve working pressure		kPa (kg/cm² , psi)	708 (7.2, 102.7)
Oil pressure switch	Type		Immersed contact point type
	Operating voltage - power consumption		12 V - 3.4 W or less
	Warning light operating pressure	kPa (kg/cm² , psi)	15 (0.15, 2.2)
	Proof pressure	kPa (kg/cm² , psi)	980 (10.0, 142) or more
Engine oil	Total capacity (Overhaul)	l (US qt, lmp qt)	7.2 (7.6, 6.3)
	When replacing engine oil and oil filter	l (US qt, lmp qt)	5.7 (6.0, 5.0)
	When replacing engine oil only	l (US qt, lmp qt)	5.5 (5.8, 4.8)

Recommended oil:

Items having the API standard SM "Energy Conserving" logo

ILSAC standard GF-4 Star burst mark label on the container

Fig 1: SAE Viscosity Chart

Courtesy of SUBARU OF AMERICA, INC.

CAUTION: It is acceptable to fill an engine with oil of another brand when replacing the oil, but make sure to use an oil with an API standard and SAE viscosity number specified by Subaru.

NOTE: If the vehicle is used in regions of high temperatures or in other severe environments, use oil with the viscosities shown below. API standard: SM or SL

SAE Viscosity No.: 30, 40,10W-50, 20W-40, 20W-50