★★★★★ 5
Perfect fit
Nice replacement on my 2016 Subaru Forester
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Reviewed in the United States on April 28, 2026
Radium Engineering Air Oil Separator - Universal Kit
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Radium Engineering Air Oil Separator - Universal KitUniversal air oil separator. Designed to vent back into engine induction system for a closed system. Increased engine performance from cleaner inlet air. Prevents oil buildup. Lowers hydrocarbon emissions
Quick Dispatch:
Your Radium Engineering Air Oil Separator - Universal Kit orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your Radium Engineering Air Oil Separator - Universal Kit ships.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.8 ★★★★★
Based on 249 reviews
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Product Reviews
★★★★★ 5
Perfect Fit for 2018 Forester
I've purchased various filters from EP Auto and each one matches the vehicle's needs and is a good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 4
Easy self maintenance.
Does the job of what theu try to upset you Valvoline for a fraction of the price and easy to install.
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Reviewed in the United States on August 27, 2025
★★★★★ 5
Good filter!
I have used this replacement filter for the past 5 changes. Works great
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Saved money
Saved money d.i.y.
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Reviewed in the United States on April 20, 2026
