Can I prime a new oil pump with this? GM 5 cyl. oil pump.

YOU Must mix it with oil to make it really work. This is a Zinc additive to pregnate the metal and make it hold onto the new oils of today. It is NOT to be used as an oil substitute. Or at least that is what I understand from my fifty years in the automotive repair and engine building. I use this with a 50/50 to build my engines and I pour all that is left over into the oil pan before start. I also use it in all my cars/trucks/lawn mowers/motor homes for over 20 years. I have never had an engine build eat up cam bearings or pumps or mains and rod bearings upon start up. But that is my 2cents worth. P.S. I also use it every other oil change too.

Can I use this on rubber gaskets and o-rings before installation?

I am not for sure how it affects o-rings and gaskets, but one of the other reviewers says it is "absolutely OK" for o-rings and rubber gaskets.

Is this similar to 00 grease or more of a gear oil?

I haven't used 00 grease, but this stuff is like a very tacky/sticky oil. Kindve like a gear oil

What country is this made in?

The ones I bought were from the good ole U S.A

Lucas Oil 10153 Assembly Lube 8 Oz

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Description

🛡️ Gear up your engine build with the ultimate assembly lube!

LONG TERM STORAGE SAVIOR - Keeps engine parts safe from seizing, galling, and scuffing even during extended downtime.
ELIMINATE DRY STARTS INSTANTLY - Protect your engine from the very first turn of the key.
FLOWS PERFECTLY WITHOUT DRIPPING - Low viscosity that stays put until engine oil takes over, ensuring no mess or waste.
SEMI SYNTHETIC FORMULA WITH MOLYBDENUM - Trusted by engine builders for superior wear resistance and smooth break-in.
PRECISION PRE LUBE FOR CRITICAL COMPONENTS - Optimized for bearings, cams, lifters, and valve trains to ensure flawless assembly.

Lucas Oil 10153 Assembly Lube is a high-performance semi-synthetic lubricant designed to protect engine components during assembly and initial startup. With a 0W viscosity and molybdenum additive, it prevents dry starts, seizing, and wear on bearings, cams, lifters, and valve trains. Its formula stays in place during reassembly and dissolves seamlessly into engine oil after startup, making it a trusted choice for professional engine builders and enthusiasts alike.

Specifications

ASIN	B000UK9786
Best Sellers Rank	#271,456 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #941 in Engine Oils for Motorbikes
Brand	Lucas Oil
Brand Name	Lucas Oil
Container Type	Bottle
Country of Origin	USA
Customer Reviews	4.9 out of 5 stars 2,140 Reviews
Global Trade Identification Number	00049807101534
Included Components	Lucas Oil 10153 High Performance Semi-Synthetic Assembly Lube - 8 Ounce
Item Form	Oil
Item Type Name	Lucas Oil 10153 High Performance Semi-Synthetic Assembly Lube - 8 Ounce
Item Weight	0.01 Ounces
Liquid Volume	236 Millilitres
Manufacturer	Lucas Oil
Material	Plastic
Material Type	Plastic
Model Number	LUC10153
Number of Items	1
Package Information	Bottle
Part Number	LUCA10153
Recommended Uses For Product	Automotive
SAE J300 Viscosity Grade	0W
Specific Uses For Product	Vehicle
UPC	049807101534 182682948655
Unit Count	236.59 Milliliters
Viscosity	0w

Reviews

V**V

Lucas Assembly lube

It’s really good lube for rebuilding engines . I recommended.

1.02.2026

K**R

Happy

Good stuff

8.12.2025

P**K

これはとても素晴らしい製品で、日本で見つけられて本当に良かったです。

この製品はとても気に入っています。粘度が低いためメインベアリングにも使用できますが、再組み立てまで待っている間に流れ落ちることはありません。エンジン始動後しばらくするとエンジンオイルに溶け込むよう設計されています。さらにモリブデンを含んでおり、これは多くのエンジンメーカーが推奨しています。組み立て用グリースと併用すると効果的です。

7.11.2025

R**.

Good stuff, v sticky!!

Used this on a few rebuilds now, it's very clingy so gives good peace of mind for initial start up

17.01.2025

M**.

I like it, would buy again

Good stuff, arrived in good condition. Was on sale :)

18.01.2026

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