J&L Oil Separator

2022–2025 Subaru BRZ 2.4L

3117P-B

Overview:

The J&L Oil Separator is a precision-engineered solution designed to improve the crankcase ventilation system on the Subaru BRZ 2.4L models from 2022 to 2025. During normal engine operation, crankcase pressure is vented back into the intake tract, carrying oil vapors that can accumulate in the intake tube and manifold runners. This buildup can reduce fuel octane levels and impair engine performance, especially in forced induction setups where crankcase pressures are elevated.

Specifically crafted for the passenger side PCV system, this oil separator effectively captures and separates oil vapors before they reach the intake, helping to maintain cleaner intake components and optimize combustion. It is ideal for enthusiasts seeking to preserve engine efficiency and longevity while minimizing oil contamination in the intake system.

Key Features:

The J&L Oil Separator employs a multi-stage filtration process and robust construction to ensure reliable performance and ease of maintenance:

• Solid billet aluminum construction for durability and corrosion resistance
• Black anodized finish for a sleek, protective coating
• Knurled tank base allows for easy removal and draining of collected oil
• O-ring seal prevents leaks and ensures a secure fit
• Fine mesh stainless steel screen traps the smallest oil vapors
• 1/2" thick, 1/16" aluminum honeycomb filter promotes vapor coalescence and oil separation
• 3-ounce fluid capacity to collect separated oil without frequent maintenance
• Designed specifically for the passenger side PCV system on 2022–2025 Subaru BRZ 2.4L
• Helps maintain fuel octane integrity by reducing oil vapor contamination

Construction & Design:

This oil separator is meticulously milled from a solid billet aluminum block, ensuring exceptional strength and longevity under demanding engine bay conditions. The black anodized finish not only enhances corrosion resistance but also provides a clean, professional appearance. The internal filtration system combines a fine stainless steel mesh with an aluminum honeycomb filter, engineered to capture and condense oil vapors efficiently. The separated oil collects at the bottom of the tank, which can be easily drained thanks to the knurled base design. An O-ring seal guarantees a leak-free installation, maintaining system integrity.

Installation & Fitment:

The J&L Oil Separator is designed as a direct-fit replacement for the passenger side PCV system on Subaru BRZ models equipped with the 2.4L engine from 2022 through 2025. Installation requires no permanent modifications and can be completed using basic hand tools. The unit mounts securely in place of the factory oil separator, providing a straightforward upgrade that enhances crankcase ventilation efficiency.

What's Included:

• J&L Oil Separator (Passenger Side) with black anodized finish
• O-ring seal for leak prevention
• Integrated fine mesh stainless steel screen and aluminum honeycomb filter
• Installation instructions

Ideal For:

This oil separator is perfect for Subaru BRZ owners who want to maintain optimal engine performance and cleanliness, particularly those who drive spiritedly or have modified their vehicles. It is especially beneficial for forced induction setups or any application where crankcase pressures and oil vapor contamination are a concern. Regular draining every 2,000 to 3,000 miles ensures consistent performance and prevents oil buildup in the intake system.

J&L Oil Separator Co. builds application-specific oil catch cans (air/oil separators) designed to trap blow-by vapors before they contaminate intake and intercooler plumbing. It’s a practical performance upgrade for boosted and high-output engines, helping reduce carbon/oil buildup and keep intake charge paths cleaner over time.