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RR Racing Air/Oil Separator for Lexus IS 250 2006+
Lexus Air/Oil Separator

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Our Price: $189.99

Availability: Usually Ships in 2 to 3 Weeks
Product Code: IS2AOS0001


The 250 Air/Oil separator is a by product of our IS-F track development program. We finally added an air/oil separator to our IS250 line. As IS250 does not have port injectors, it can benefit the most from our Air/Oil Separator as it gets a lot of oil in its PCV line.

During on track testing and data logging, it became clear that the PCV (Positive Crankcase Ventilation) was allowing for significant ingestion of oil into the engine (see diagram in the photo gallery of this product). Oil ingestion results in ignition retard due to the low octane of engine oil as it burns up. Additionally, oil burning in the engine results in carbon deposits on the intake valves, pistons, and combustion chamber which further increases the propensity for power-robbing detonation. You don't have to take your IS to the track to benefit from our Air/Oil Separator. Anyone who drives aggressively on twisty roads with hard acceleration and deceleration will benefit from avoiding oil ingestion into the engine.

The RR-Racing Air/Oil Separator is an fully sealed design featuring an advanced zero maintenance air oil separator with a level indicator for easy inspection. All you have to do is check the level indicator and periodically empty the canister.

All components in this product are proudly engineered and manufactured here in the United States of America.

Please click on one of the links below for more relevant detailed information about our approach to engineering great products for your Lexus:

RR Racing Lexus IS-F Project.

Compatibility Table
Make Model Year Range
Lexus IS250* 2006+

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 3 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Air/Oil separator for Lexus IS 250 May 19, 2024
Reviewer: Anonymous Person from Honolulu, Hi  
I found that installment was fairly easy and the visual instructions surely helps!

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  0 of 0 people found the following review helpful:
5 of 5 Great AOS May 7, 2024
Reviewer: Stephen from PASADENA, CA United States  
Great kit with quality hardware and perfect fit! Works great and is catching all the gunk before the air is recycled back into the intake!  A must have for GDI engines regardless if it's track or daily driven!

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  1 of 1 people found the following review helpful:
5 of 5 Oil catch can November 29, 2023
Reviewer: joel morven from Kelowna , BC Canada  
Catch can works great, looks great. Came supper quick in the mail. Instructions were easy to follow, I think pictures would be better in colour, that's about it.

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