LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2021 >> Ascent Base >> Repair and Diagnosis >> Engine Mechanical >> Engine Lubrication System >> General Description >> Specification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Lubrication System: General Description: Specification

Lubrication method Forced lubrication type
Oil pump Pump type Trochoid type
Number of teeth pcs. Inner rotor 8
Outer rotor 9
Outer rotor diameter x Thickness mm (in) 77 x 14.8 (3.03 x 0.58)
Performance (Oil temperature 120°C (248°F)) 600 r/min Discharge pressure kPa (kg/cm2 , psi) 39 (0.4, 5.7) or more
Discharge rate L (US qt, Imp qt)/min. 7.7 (8.1, 6.8) or more
6, 000 r/min Discharge pressure kPa (kg/cm2 , psi) 337 (3.4, 48.9)
Discharge rate L (US qt, Imp qt)/min. 63.8 (67.4, 56.2) or more
Relief valve working pressure (2-step relief) Valve opening pressure kPa (kg/cm2 , psi) 560 (5.7, 81.2)
Oil filter Filter type Full-flow filter type
Filtration area cm2 (sq in) 867 (134.3)
By-pass valve opening pressure kPa (kg/cm2 , psi) 160 (1.6, 23.2)
Outer diameter x Width mm (in) 67.4 x 87.1 (2.65 x 3.43)
Installation screw specifications M 20 x 1.5
Oil pressure switch Type Immersed contact point type
Operating voltage V 12
Warning light operating pressure kPa (kg/cm2 , psi) 14.7 (0.1, 2.1)
Proof pressure kPa (kg/cm2 , psi) 1, 180 (12.0, 171.1)
Engine oil Total capacity (at overhaul) L (US qt, Imp qt) 5.55 (5.9, 4.9)
When replacing engine oil and oil filter L (US qt, Imp qt) 4.5 (4.8, 4.0)
When replacing engine oil only L (US qt, Imp qt) 4.3 (4.5, 3.8)

Engine oil: 

Refer to "RECOMMENDED MATERIALS" for engine oil. Ref. to RECOMMENDED MATERIALS .