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⚙️ Slick Start, Smooth Ride: Engine assembly’s secret weapon!
Permatex 81950 Ultra Slick Engine Assembly Lube is a high-viscosity, OEM-spec lubricant designed to protect metal surfaces during engine assembly and initial start-up. With a 550°F flash point and compatibility across critical engine components, it prevents wear and extends engine life. Trusted by professionals and backed by thousands of positive reviews, this 4 oz. precision bottle delivers mess-free, reliable lubrication for new or rebuilt engines.

| ASIN | B000HBNVSK |
| Best Sellers Rank | #10,137 in Automotive ( See Top 100 in Automotive ) #11 in Automotive Assembly Lubricants |
| Brand | Permatex |
| Brand Name | Permatex |
| Compatible Material | Metal |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 10,118 Reviews |
| Flash Point | 550 °F |
| Global Trade Identification Number | 00686226819505 |
| Included Components | Permatex 81950 Ultra Slick Engine Assembly Lube, 4 oz. , Red |
| Item Form | Liquid |
| Item Type Name | Permatex 81950 Ultra Slick Engine Assembly Lube, 4 oz. , Red |
| Item Weight | 4.64 ounces |
| Liquid Volume | 130 ml |
| Manufacturer | Permatex |
| Material | Plastic |
| Model Number | 81950 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Information | Bottle |
| Part Number | 81950 |
| Recommended Uses For Product | Automotive |
| SAE J300 Viscosity Grade | 50 |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 686226819505 779421602680 |
| Unit Count | 4 Fluid Ounces |
| Viscosity | High |
| Viscosity Level | High |
| Warranty Description | Warranty |
K**Y
Useful engine assembly lube
I've been using the Permatex 81950 for a while now and really like how smoothly my engine parts go together. it's handy to keep on hand during rebuilds. the red color makes it easy to see where I've applied it. definitely a good addition for anyone working on engine projects. it helps parts turn easily without any hassle. happy with the quality and how it performs during assembly.
C**D
Practical lube for weekend car work
Planning some engine work on my old Civic, I grabbed this for my little home garage next to my desk in the office area. Texture is thick so it sticks right on the cam lobes and bearings. During a late Saturday install, it stayed put even when i kept rotating the crank. Im glad I had it.
B**E
Fantastic stuff!
Awesome product! Performs better than advertised. A must have when assembling any engine!
K**P
Great product
This stuff works great !
A**Z
great ratchet lube
I've replaced all the grease and oil in my ratchets with this Permatex 81950 Ultra Slick lube and it gives me the quietest ratchets, best backdrag, and lasts a long time.
A**S
Decent assembly lube for weekend wrenching
I picked this up during a 1 am “I should rebuild that old Miata engine” spiral. The tube is small but for hobby use it works fine. I like how thick it is, it clings to cam lobes and bearings instead of dripping everywhere. First use was on a set of rocker arms and it stayed put while I torqued everything down, which helped my anxiety on first startup. The red color makes it easy to see coverage. My mild complaint, the nozzle is a little stubby so it feels clumsy when I try to get into tight spots. I usually end up using a small brush. For the price though, I am glad I tossed this into the cart.
T**I
Best assembly lube
Perfect
G**N
Quality stuff
Works very well. Good product
T**.
Sehr schmierige Angelegenheit - Ironie
Top Ware, gerne auch beim nächsten Getriebe- oder Motor-Zusammenbau.
K**G
Work like it should
Product as describe and work like it should.
F**A
Consiglio
Ottimo lubrificante per montaggio di alberi motori,alberi a camme ecc
M**.
worth it
worth it
F**.
Good
Är som beskrivet
Trustpilot
3 weeks ago
4 days ago