J&L Oil Separator 3.0 Driver Side - 2020-2026 Chevy Silverado/GMC Sierra 2500/3500 6.6L Gas
Warranty Information
Vendor warranty summary
J&L Oil Separator Co. Warranty
At a glance: Lifetime warranty against defects for the original buyer, with registration
This is J&L Oil Separator Co.'s warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| Oil separators / catch can kits | Lifetime of the original retail purchaser |
| Wear items such as O-rings | Not covered |
| Upgrade program (substantially improved version released) | 50% off the upgrade if requested within 1 year of purchase |
- Original purchaser only — coverage does not transfer if you sell it.
- Keep your NVMOS order confirmation — proof of purchase is required.
What's covered
- Defects in materials or workmanship for as long as the original buyer owns the product
- J&L decides whether to repair or replace the part
- Parts and labor for the repair or replacement are free; installation costs are not included
- If J&L releases a substantially improved version within a year of your purchase, you can buy it at half price with your original proof of purchase
What's not covered
- Products that have been altered or modified
- Misuse, negligence, or improper installation or operation
- Damage that happened in shipping
- Normal wear items such as O-rings
- Products bought from an unauthorized dealer
- Second owners (the warranty cannot be transferred)
How to make a J&L Oil Separator Co. warranty claim
- Register your kit at https://www.jlosc.com/warrantyreg/ using your purchase paperwork
- Contact J&L by phone at 757-842-6497 or through https://www.jlosc.com/contact-us/
- Include your proof of purchase, a description of the problem, and photos if you have them
- J&L reviews the claim and repairs or replaces the part
J&L Oil Separator Co. contact: Phone: 757-842-6497 · Email: info@JLosc.com · Claim page / support
Bought it from NVMOS? Start with us.
Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to J&L Oil Separator Co., and help it along either way.
Shop J&L Oil Separator Co. at NVMOS
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See all J&L Oil Separator Co. products, lead times and FAQs →
Disclaimer: The information on this page describes J&L Oil Separator Co.'s own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: J&L Oil Separator Co. official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.
About the brand
J&L Oil Separator Co. of Chesapeake, Virginia makes one thing: vehicle-specific billet oil separators, also called catch cans. NVMOS carries the J&L Oil Separator 3.0 in driver-side and passenger-side kits for Ford, Toyota, Jeep and Nissan engines, especially direct-injection motors that build carbon on the intake valves.
Based in: Chesapeake, Virginia · Made in: USA · Lead time: In-stock ships in 24–48 hrs
Shop all 60 J&L Oil Separator Co.WarrantyLead timesAll brands
Warranty terms are set by J&L Oil Separator Co., not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Gas HD trucks do the heavy towing, and the 6.6L V8 gets a driver-side separator that traps blow-by before it reaches the intake.
Oil vapor leaves the crankcase through the PCV system and, on most engines, ends up back in the intake. Over time it films the intake tube and manifold runners and can dilute the fuel charge, which lowers effective octane. Boosted engines make it worse because crankcase pressure runs higher. This J&L separator sits in that path and catches the oil before it gets to the intake.
The body is machined from solid 6061 billet aluminum. The base is knurled so you can twist it off by hand to empty it, and an O-ring keeps it sealed. Inside, a fine stainless steel mesh filter turns vapor into droplets heavy enough to drop into the reservoir. The tank holds 3 oz, which sounds small, but most PCV systems send far less than that your way between drains.
Fitment
Fits the 2020-2026 Chevy Silverado 2500/3500 and GMC Sierra 2500/3500 with the 6.6L gas engine. Diesel trucks are not covered.
What's included
OEM-style quick-connect fittings are included.
Install notes
Plug-and-play using the included quick-connect fittings. GM fittings have a single release button: press it squarely and pull the fitting straight off. Check the can after the first 500 to 1,000 miles to learn how fast yours collects, then set a drain schedule from there. Cold weather adds condensation, so check more often in winter. Give it a thorough cleaning every 15,000 miles or so, and dispose of the collected oil properly; it is mixed with fuel and water and does not belong back in the engine.
This product is not CARB exempt. It is not for sale or use in California or any other state that follows California emission standards, and orders shipping to a California address are cancelled.
Questions before you order?
Fitment questions are easier to settle before the box ships. Call or text Carl & Anton at (920) 249-7744 or use the chat — real humans in Sheboygan, Wisconsin, not a call center.
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Specifications
J&L Oil Separator 3.0 Driver Side FAQs
Will this fit my vehicle?
Yes for 2020-2026 Silverado and Sierra 2500/3500 trucks with the 6.6L gas V8. Diesel trucks are not covered.
How hard is the install?
The vendor describes it as plug-and-play with basic hand tools and OEM-style quick-connect fittings. Installation instructions can be downloaded from the manufacturer's product page.
How often do I need to empty it?
Plan a first check at 500 to 1,000 miles. Most applications collect about an ounce per 1,000 miles, but driving style, climate and engine condition change that. Winter driving collects faster because of condensation.
Do I need a separator on both sides of the engine?
In most cases only the PCV (dirty) side needs one, since that side sees vacuum most of the time. Some turbo engines can show oil on the clean side under frequent towing, but on most engines you will see very little there.
Can I get more than 3 oz of capacity?
Yes. J&L's reservoir extension is compatible with this application and raises total capacity from 3 oz to 6 oz. It is sold separately.
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