NHTSA ID Number: 10198741
Manufacturer Communication Number: 02-187-21
Summary
This bulletin outlines changes in the service procedure for engine oil pressure inspection.
NUMBER: 02-187-21
DATE: 06/01/21
INTRODUCTION:
This Service Information Bulletin outlines changes in the service procedure for engine oil pressure inspection for ALL models. The NEW procedure requires the engine oil pressure to be measured at idle AND at 3000 RPM. This standard has changed to provide an easier inspection. These changes will be added soon to the applicable Service Manuals.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
IMPORTANT NOTES:
- Always confirm the oil level is at the proper level prior to inspection.
- The standard oil pressure value is based on an engine oil temperature of 80°C (176°F).
- If the oil pressure is OUT of the specification, diagnose per the applicable Service Manual.
- If the oil pressure warning light is ON and oil pressure is within standard specification, diagnose per the applicable Service Manual.
Engine> MECHANICAL > Engine Oil Pressure > INSPECTION
For BRZ – LUBRICATION > LUBRICATION SYSTEM > FUNCTION INSPECTION
STEP 1 ) Disconnect the ground terminal from battery sensor while supporting the sensor with the other hand.
STEP 2 ) Remove the oil pressure switch.
STEP 3 ) Install the oil pressure gauge (498575400) tool into the oil pressure switch port in the chain cover.
STEP 4 ) Reconnect the ground cable terminal to battery sensor and torque to 7.5 Nm (5.5ft.-lbs. or 66 inch-lbs.) while supporting the senor with the other hand: STARTING / CHARGING SYSTEMS > Battery Sensor.
STEP 5 ) Start the engine, and check the oil pressure.
Engine oil pressure:
At Idle (in Neutral or Park):
Standard
- Refer to the chart below for pressure specification.
At 3,000 RPM:
Standard
- Refer to the chart below for pressure specification.
| Model | MY | Engine Type | Oil Pressure at Idle | Oil Pressure at Idle | Oil Pressure at 3000rpm |
| CVT/AT | MT | ||||
| Outback & Legacy | 2015-2019 | FB25 | 71 kPa (10 psi) or more | N/A | 206 kPa (30 psi) or more |
| 2015-2019 | EZ36 | 76 kPa (11 psi) or more | N/A | 361 kPa (52 psi) or more | |
| 2020-2022 | FA24 DIT | 62 kPa (9 psi) or more | N/A | 350 kPa (50 psi) or more | |
| 2020-2022 | FB25 | 47 kPa (7 psi) or more | N/A | 230 kPa (33 psi) or more | |
| Forester | 2014-2018 | FA20 DIT | 65 kPa (9.5 psi) or more | N/A | 324 kPa (47 psi) or more |
| 2014-2018 | FB25 | 71 kPa (10 psi) or more | 69 kPa (10 psi) or more | 206 kPa (30 psi) or more | |
| 2019-2022 | FB25 | 47 kPa (7 psi) or more | N/A | 230 kPa (33 psi) or more | |
| Impreza | 2012-2016 | FB20 | 69 kPa (10 psi) or more | 69 kPa (10 psi) or more | 206 kPa (30 psi) or more |
| 2017-2022 | FB20 | 56 kPa (8 psi) or more | 48 kPa (7 psi) or more | 230 kPa (33 psi) or more | |
| Crosstrek | 2012-2017 | FB20 | 69 kPa (10 psi) or more | 69 kPa (10 psi) or more | 206 kPa (30 psi) or more |
| 2018-2022 | FB20 | 56 kPa (8 psi) or more | 48 kPa (7 psi) or more | 230 kPa (33 psi) or more | |
| 2021-2022 | FB25 | 47 kPa (7 psi) or more | N/A | 230 kPa (33 psi) or more | |
| WRX | 2015-2022 | FA20 DIT | 65 kPa (9.5 psi) or more | 65 kPa (9.5 psi) or more | 324 kPa (47 psi) or more |
| STI | 2015-2022 | EJ25 | N/A | 102 kPa (14.8 psi) or more | 451 kPa (65.4 psi) or more |
| Ascent | 2019-2022 | FA24 DIT | 62 kPa (9 psi) or more | N/A | 350 kPa (50 psi) or more |
| BRZ | 2013-2020 | FA20 D-4S | 50 kPa (7 psi) or more | 50 kPa (7psi) or more | 222 kPa (32 psi) or more |
STEP 6 ) After inspection, reinstall the related parts in the reverse order of removal.
NOTE: No changes have been made to the Warranty Labor Time Guide for this procedure.
60 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| SUBARU | ASCENT | 2019-2021 |
| SUBARU | BRZ | 2013-2020 |
| SUBARU | CROSSTREK | 2013-2021 |
| SUBARU | FORESTER | 2014-2021 |
| SUBARU | IMPREZA | 2012-2021 |
| SUBARU | LEGACY | 2015-2022 |
| SUBARU | OUTBACK | 2015-2021 |
| SUBARU | WRX | 2015-2021 |
1 Associated Document
Manufacturer Communications
NUMBER: 02-187-21
DATE: 06/01/21
- GRYVOZE Hydraulic Pressure Test Kit - Includes 5 Hydraulic Test Gauges, 12 Test Couplings, 14 Tee Connectors, 1 Carter Quick Connector, 5 Test Hoses, and a Portable Storage Case.
- Non-Yellowing Gauges: Hydraulic pressure gauge kit includes 5 Hydraulic Gauges (0-10 bar / 150 PSI; 0-100 bar / 1500 PSI; 0-250 bar / 4000 PSI; 0-400 bar / 6000 PSI; 0-600 bar / 10000 PSI). The clear dual-scale displays ensure precise readings and eliminate the need for unit conversions.
- Robust Gauge: With a 304 stainless steel casing and copper threaded joints, this hydraulic pressure gauge resists rust, shock, water, dust, and corrosion, ensuring long-lasting durability. The gauge is filled with high-grade glycerin, which maintains clarity and transparency, withstands extreme temperatures, and effectively reduces vibrations and pulsations.
- Sturdy Portable Polypropylene Box: This hydraulic pressure testing kit includes a comprehensive set of pressure measurement tools. Featuring a sponge protective layer and compact slots, it provides tidy storage and excellent protection. The box has a handle and durable locks for easy carrying and use.
- Long Testing Hoses: The excavator hydraulic pressure test kit contains five high-pressure hoses made of durable nylon, aramid fiber, and polyurethane. Their 5.4 ft / 1.66 m length allows for operation from a greater distance.
- 【Full 33 Piece All In One Kit】: Complete professional-grade cooling system service set in one rugged carrying case — includes 0-35 PSI pressure test pump, vacuum purge and refill tool, 23 radiator adapters, probe thermometer, cap wrench, EU and US air intake connectors, O-rings, clear hoses, user manual, and custom storage box. Ready for both professional workshops and home garage use
- 【Dual Function Diagnosis】: Pressure test mode quickly detects leaks in radiators, head gaskets, heater cores, water pumps, and hoses. Switch to vacuum refill mode to purge trapped air and refill coolant without bubbles, helping reduce overheating risks caused by air pockets. Combines two essential functions in one efficient tool
- 【23 Adapters Wide Vehicle Coverage】: Covers most passenger vehicles across European, Japanese, American, and Korean brands — fits sedans, SUVs, and light trucks. Each adapter features molded size markings for quick identification and hassle-free selection. A universal tapered adapter is also included for additional fitting flexibility
- 【Heavy Duty Design】: Built with aluminum alloy pump cylinder, corrosion-resistant brass fittings, flexible rubber hoses, and rugged nylon components. Clear pressure gauge delivers accurate readings at a glance. Engineered for long-term reliability — the aluminum cylinder and brass fittings resist wear and corrosion, making this kit suitable for daily use in both home garages and professional shops
- 【Efficient Organization】: Color-coded adapters with molded size markings enable at-a-glance selection. Custom-molded carrying case features dedicated slots for every component — protects your tools, simplifies transport, and keeps everything neatly in place between jobs
- Color Coded Set: The color-coded design of this cooling system pressure tester kit makes it convenient to select the suitable adapter without any mess. With 18 pieces, it's perfect for testing cooling systems on most vehicles.
- Well Made Kit: The adapters in this cooling system pressure tester are made of high-quality aluminum and treated for rust and corrosion protection. High-tenacity rubber and high-impact plastic ensure a longer service life.
- Easy to Carry: The thickened carrying case keeps all accessories in place and protects the gauges during storage and transportation, making it convenient for on-the-go use.
- Multifunction: The 18-piece radiator pressure tester kit allows for detecting leaks in the radiator system, especially head gasket failure detection. It also helps you change coolant more efficiently.
- 100% Satisfaction: We are responsible for every product. If you have any problems with our products or services, please contact us immediately and we will provide exceptional responses to your concerns.
- Compatibility Note: For further confirmation of specific model compatibility, refer to the vehicle owner's manual or contact a professional technician. Excludes Fo/rd, K/I/A, Bo/s/ch, C/I/S Je/tro/nic, G//M Th/rot/tle Bo/dy Systems, A/cu/ra, J/ee/p, B/M/W, Ni/s/san, and To/yo/ta fuel systems. Not compatible with small/non/standard S/chra/der vallves, high/pre/ssure direct in/ject/ed engines, or die//sel injection pumps. Verify your vehicle’s vallve size and pressure specs before purchase
- Wide Compatibility: This fuel pressure tester kit comes with multiple adapters for most gasoline engines in trucks, cars, motorcycles and RVs. But not compatible with diesel high - pressure injection pumps or direct injection engines
- Accurate Testing: The fuel pressure tester features high - precision sensors for accurate measurement of fuel system pressure changes. Measures range 0-140PSI/ 0-10bar dual color coded scale to diagnose fuel supply and injection issues
- Multipurpose Use: The 8 inches hose fits all M6 fuel pressure test ports. The 15 inches hose connects snugly to any 1/4" standard schrader valve. The M8, M10, M12, and M14 adapters make sure this tool kit can be used on most cars and vehicles
- Corrosion Resistance: Crafted from high - strength materials, the fuel pressure tester offers excellent corrosion and impact resistance. It ensures long - term stability and reliability even in harsh working conditions
- ACCURATE DUAL-SCALE GAUGE: Features a shock-resistant dry gauge with built-in damping mechanism, providing clear 0–140 PSI and 0–10 BAR dual scales for precise fuel system diagnostics
- DURABLE CONSTRUCTION: Built with OEM-grade brass, aluminum, and steel components for long-lasting performance in tough environments
- COMPLETE ADAPTER SET: Includes 8 adapters (M6 to M14) and two hoses with quick-release valve for easy and safe testing on various fuel ports
- USER-FRIENDLY & SAFE: Comes with relief valve and drain hose for safe fuel recovery; always follow included safety guidelines for optimal use
- COMPATIBILITY NOTICE: This tester fits most gasoline engines in vehicles. But it will NOT FIT vehicles with Bosch, CIS Jetronic, GM TBI, or Direct Injection systems. Check Your Model as it may not fit certain Ford, KIA, Acura, Jeep, BMW, Nissan, and Toyota models that use small or non-standard Schrader valves. We strongly recommend verifying your vehicle's specifications to guarantee a perfect fit.
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Bulletin Number: 02-187-21; Date: 06/01/21 Page 1 of 3 SERVICE INFORMATION BULLETIN Continued… CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS. Subaru Service Bulletins are intended for use by professional technicians ONLY. They are written to inform those technicians of conditions that may occur in some vehicles, or to provide information that could assist in the proper servicing of the vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do the job correctly and safely. If a condition is described, DO NOT assume that this Service Bulletin applies to your vehicle, or that your vehicle will have that condition. Subaru of America, Inc. is ISO 14001 Compliant ISO 14001 is the international standard for excellence in Environmental Management Systems. Please recycle or dispose of automotive products in a manner that is friendly to our environment and in accordance with all local, state and federal laws and regulations. NUMBER: 02-187-21 DATE: 06/01/21 APPLICABILITY: 2015-2022MY Legacy/Outback 2014-2022MY Forester 2012-2022MY Impreza/Crosstrek 2015-2022MY WRX 2019-2022MY Ascent 2013-2022MY BRZ SUBJECT: Engine Oil Pressure Inspection – Service Procedure Change INTRODUCTION: This Service Information Bulletin outlines changes in the service procedure for engine oil pressure inspection for ALL models. The NEW procedure requires the engine oil pressure to be measured at idle AND at 3000 RPM. This standard has changed to provide an easier inspection. These changes will be added soon to the applicable Service Manuals. SERVICE PROCEDURE / INFORMATION: REMINDER: Customer satisfaction and retention starts with performing quality repairs. IMPORTANT NOTES: • Always confirm the oil level is at the proper level prior to inspection. • The standard oil pressure value is based on an engine oil temperature of 80°C (176°F). • If the oil pressure is OUT of the specification, diagnose per the applicable Service Manual. • If the oil pressure warning light is ON and oil pressure is within standard specification, diagnose per the applicable Service Manual. ATTENTION: GENERAL MANAGER q PARTS MANAGER q CLAIMS PERSONNEL q SERVICE MANAGER q IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. © 2021 Subaru of America, Inc. All rights reserved. Bulletin Number: 02-187-21; Date: 06/01/21 Page 2 of 3 Continued… Engine> MECHANICAL > Engine Oil Pressure > INSPECTION For BRZ – LUBRICATION > LUBRICATION SYSTEM > FUNCTION INSPECTION STEP 1 ) Disconnect the ground terminal from battery sensor while supporting the sensor with the other hand. STEP 2 ) Remove the oil pressure switch. STEP 3 ) Install the oil pressure gauge (498575400) tool into the oil pressure switch port in the chain cover. STEP 4 ) Reconnect the ground cable terminal to battery sensor and torque to 7.5 Nm (5.5ft.-lbs. or 66 inch-lbs.) while supporting the senor with the other hand: STARTING / CHARGING SYSTEMS > Battery Sensor. STEP 5 ) Start the engine, and check the oil pressure. Engine oil pressure: At Idle (in Neutral or Park): Standard • Refer to the chart below for pressure specification. At 3,000 RPM: Standard • Refer to the chart below for pressure specification. Bulletin Number: 02-187-21; Date: 06/01/21 Page 3 of 3 Model MY Engine Type Oil Pressure at Idle Oil Pressure at Idle Oil Pressure at 3000rpm CVT/AT MT Outback & Legacy 2015-2019 FB25 71 kPa (10 psi) or more N/A 206 kPa (30 psi) or more 2015-2019 EZ36 76 kPa (11 psi) or more N/A 361 kPa (52 psi) or more 2020-2022 FA24 DIT 62 kPa (9 psi) or more N/A 350 kPa (50 psi) or more 2020-2022 FB25 47 kPa (7 psi) or more N/A 230 kPa (33 psi) or more Forester 2014-2018 FA20 DIT 65 kPa (9.5 psi) or more N/A 324 kPa (47 psi) or more 2014-2018 FB25 71 kPa (10 psi) or more 69 kPa (10 psi) or more 206 kPa (30 psi) or more 2019-2022 FB25 47 kPa (7 psi) or more N/A 230 kPa (33 psi) or more Impreza 2012-2016 FB20 69 kPa (10 psi) or more 69 kPa (10 psi) or more 206 kPa (30 psi) or more 2017-2022 FB20 56 kPa (8 psi) or more 48 kPa (7 psi) or more 230 kPa (33 psi) or more Crosstrek 2012-2017 FB20 69 kPa (10 psi) or more 69 kPa (10 psi) or more 206 kPa (30 psi) or more 2018-2022 FB20 56 kPa (8 psi) or more 48 kPa (7 psi) or more 230 kPa (33 psi) or more 2021-2022 FB25 47 kPa (7 psi) or more N/A 230 kPa (33 psi) or more WRX 2015-2022 FA20 DIT 65 kPa (9.5 psi) or more 65 kPa (9.5 psi) or more 324 kPa (47 psi) or more STI 2015-2022 EJ25 N/A 102 kPa (14.8 psi) or more 451 kPa (65.4 psi) or more Ascent 2019-2022 FA24 DIT 62 kPa (9 psi) or more N/A 350 kPa (50 psi) or more BRZ 2013-2020 FA20 D-4S 50 kPa (7 psi) or more 50 kPa (7psi) or more 222 kPa (32 psi) or more STEP 6 ) After inspection, reinstall the related parts in the reverse order of removal. NOTE: No changes have been made to the Warranty Labor Time Guide for this procedure. IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs.
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