[{"id":274853462152,"handle":"cannot-ship-to-california","title":"Cannot Ship to California","updated_at":"2026-01-05T11:21:29-05:00","body_html":"","published_at":"2022-10-07T14:00:22-04:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"tag","relation":"equals","condition":"NoCALIFORNIA"}],"published_scope":"global"},{"id":189145677960,"handle":"coupon-eligible","title":"Coupon Eligible","updated_at":"2026-01-06T19:18:20-05:00","body_html":"","published_at":"2020-12-14T21:11:58-05:00","sort_order":"best-selling","template_suffix":"","disjunctive":false,"rules":[{"column":"vendor","relation":"not_equals","condition":"Lightspeed Aviation"}],"published_scope":"global"},{"id":174284177544,"handle":"featured-products","updated_at":"2026-01-06T07:05:58-05:00","published_at":"2020-03-11T18:25:06-04:00","sort_order":"best-selling","template_suffix":"","published_scope":"global","title":"Featured Products","body_html":""},{"id":174258552968,"handle":"mouse-milk-worldwide-filter","title":"Mouse Milk (Worldwide Filter)","updated_at":"2026-01-05T11:21:29-05:00","body_html":"\u003ch2\u003eMouse Milk by Worldwide Filter\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMouse Milk\u003c\/strong\u003e is a premium line of penetrating oils developed by \u003cstrong\u003eWorldwide Filter, Inc.\u003c\/strong\u003e, a minority-owned, service-disabled veteran-owned business based in San Leandro, CA. 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Mouse Milk Penetrating Oil – Standard Yellow Formula, 8 oz & 32 oz
Industry-trusted penetrating oil designed to break down rust, corrosion, and friction in hard-to-reach areas—ideal for aviation and mechanical applications.
Fast-Acting Penetrant: Quickly loosens frozen nuts, bolts, valves, and linkages.
Superior Creeping Ability: Reaches deep into threads to break up rust and corrosion.
Multi-Purpose Use: Ideal for manifolds, mufflers, chokes, rods, pistons, and more.
Long-Lasting Lubrication: Reduces friction and resists oxidation over time.
Available in Two Sizes: Choose between 8 oz squeeze bottle or 32 oz refill jug.
Professional-Grade Performance: Used by mechanics, technicians, and pilots industry-wide.
Mouse Milk Penetrating Oil delivers unmatched performance when it comes to freeing rusted or seized parts. Known as "Muscle in a Hustle," this powerful yellow formula rapidly penetrates threads, fittings, and tight spaces—dissolving rust and corrosion while providing lasting lubrication. Whether you're working on aircraft engines, automotive components, or precision tools, Mouse Milk is the go-to choice for reliable maintenance results.
Thanks to its unique creeping ability, Mouse Milk flows into microscopic gaps where other lubricants fail, making it an excellent choice for engine tear-downs, heat risers, smog valves, frozen valves, and more. It also functions as an effective cutting and tapping fluid during machining operations.
I've tried many penetrates in the last 35 years and hands down, Mouse Milk is Simply the Best that others can't beat!!!
M
Mark
Perfect, great price, fast shipping, will prder again
a
audif150
Best penetrant on the market bar none,....
I worked as an aircraft mechanic for many years and was introduced to this product in my junior years and never looked back.
this thing is amazing on the most rusted out bolt treads, it some how creeps in and loosens without applying any heat.
I am retired now and since then I have tried many other name brands to compare on different projects but nothing comes close to Mouse Milk!
Highly Recommended!!.
J
John Paul Andolina Jr
Mouse Milk is fantastic.
Works where others can't. A little goes a long way and it can be used over and over. Shipping is fast and professional. 5 easy stars!
M
Marty D
Stuff works
When working as a contractor on US Air Force aircraft overseas we would rebuild small engines that were turbo-charged. Each time the turbo bolts would be frozen in place. I'd witnessed countless tools destroyed; sockets, ratchets, extension, you name it. But after a few drops of Mouse Milk we would break for chow, come back and wallah, broke free with minimal effort. I keep this in my garage and bought a bottle for my dad and brother. We've all had had successful results.
I bought these for my Grandaughter who has her private Pilots license since she was 16. She is a Freshman in college studying Aviation. She was so excited to get them and just loves them!!
