EJ Engine Oil Management System Upgrade
EJ Engine Oil Management System Upgrade
EJ Engine Oil Management System Upgrade
Upgraded the EJ engine’s oil system with a high-capacity pan, external filter, and reinforced pickup for better reliability, cooling, and extended oil life.
Upgraded the EJ engine’s oil system with a high-capacity pan, external filter, and reinforced pickup for better reliability, cooling, and extended oil life.
Upgraded the EJ engine’s oil system with a high-capacity pan, external filter, and reinforced pickup for better reliability, cooling, and extended oil life.
Problem:
The Subaru Forester's EJ engine is known for potential failures in its oil management system. The stock setup, which includes a rolled and brazed tube for oil pickup and insufficient baffling and windage tray in the oil pan, is prone to mechanical failures. Additionally, the small factory-installed oil filter combined with the turbocharged engine design leads to quicker oil contamination, necessitating frequent oil changes every 3,500 miles—a practice that is not only inefficient but also not aligned with the longevity offered by modern high-quality oils.
Solution:
To address these issues and enhance engine reliability, I implemented several high-performance aftermarket upgrades:
Moroso Oil Pan: Upgrades the oil capacity from 4 to 6 quarts, helping to reduce oil temperature and providing a larger buffer against contamination.
Killer Bee Oil Pickup and Windage Tray: Replaces the factory oil pickup with a sturdier design to prevent failure and incorporates an effective windage tray to minimize oil slosh.
Amsoil Universal External Oil Filter Kit: This addition not only filters particles down to 0.2 microns but also increases the total oil capacity to 8 quarts when including the external filter and lines. It's designed for longevity, supporting up to 60,000 miles before needing replacement.
Custom modifications were necessary to integrate these components seamlessly. I fabricated a bracket to securely mount the external oil filter to existing holes on the side of the transmission. Custom-length lines were fitted to route oil from the pump outlet to the filter, and back into the oil pan after filtration. The relocation of the oil pressure sensor was also required to accommodate the new setup. Furthermore, inline filters to the turbo were removed to prevent potential clogs.
Outcome:
This overhaul of the Forester's oil system not only extends the oil change interval significantly but also fortifies the engine against common failures. Testing indicates that the oil can effectively last up to at least 15,000 miles, although I still opt for a precautionary change of the main filter and top off the oil every 3,500 miles for optimal performance. The engine now operates more efficiently with a greatly increased oil capacity and enhanced filtration, ensuring long-term durability and robust performance.
Here's quite a long video going over the whole process:
Problem:
The Subaru Forester's EJ engine is known for potential failures in its oil management system. The stock setup, which includes a rolled and brazed tube for oil pickup and insufficient baffling and windage tray in the oil pan, is prone to mechanical failures. Additionally, the small factory-installed oil filter combined with the turbocharged engine design leads to quicker oil contamination, necessitating frequent oil changes every 3,500 miles—a practice that is not only inefficient but also not aligned with the longevity offered by modern high-quality oils.
Solution:
To address these issues and enhance engine reliability, I implemented several high-performance aftermarket upgrades:
Moroso Oil Pan: Upgrades the oil capacity from 4 to 6 quarts, helping to reduce oil temperature and providing a larger buffer against contamination.
Killer Bee Oil Pickup and Windage Tray: Replaces the factory oil pickup with a sturdier design to prevent failure and incorporates an effective windage tray to minimize oil slosh.
Amsoil Universal External Oil Filter Kit: This addition not only filters particles down to 0.2 microns but also increases the total oil capacity to 8 quarts when including the external filter and lines. It's designed for longevity, supporting up to 60,000 miles before needing replacement.
Custom modifications were necessary to integrate these components seamlessly. I fabricated a bracket to securely mount the external oil filter to existing holes on the side of the transmission. Custom-length lines were fitted to route oil from the pump outlet to the filter, and back into the oil pan after filtration. The relocation of the oil pressure sensor was also required to accommodate the new setup. Furthermore, inline filters to the turbo were removed to prevent potential clogs.
Outcome:
This overhaul of the Forester's oil system not only extends the oil change interval significantly but also fortifies the engine against common failures. Testing indicates that the oil can effectively last up to at least 15,000 miles, although I still opt for a precautionary change of the main filter and top off the oil every 3,500 miles for optimal performance. The engine now operates more efficiently with a greatly increased oil capacity and enhanced filtration, ensuring long-term durability and robust performance.
Here's quite a long video going over the whole process:
