
Description:
ACDelco E.O.S. (Engine Oil Supplement) Assembly Lubricant is specially formulated as an engine assembly lubricant that helps provide protection against run-in wear and piston scuffing. It also assists in protecting against run-in camshaft lobe and lifter scuffing resulting from insufficient lubrication. This product is not recommended for use as an additive to engine oil. For professional use only. Not for retail sale.
Reviews:
5.0 out of 5 stars It’s a GM requirement for Crate Motor installs.
(function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } It’s probably snake oil, but GM requires you to use it when installing a GM crate motor to validate the 3yr/100k engine warrantee. So it’s liquid insurance. Really it’s a good idea to use whatever recommended lube in any new engine build or startup of a crate motor to prelube the engine to help ensure proper break-in to prevent premature bearing failure.
5.0 out of 5 stars as advertised
as advertised
5.0 out of 5 stars it does work
Amazing product
5.0 out of 5 stars Five Stars
Love this product!
5.0 out of 5 stars Best assembly lube ever invented!
This stuff works for GM, Mopar, Ford, Honda etc. I've never lost an engine on break-in when using this lube.
Visit the ACDelco Store
ACDelco GM Original Equipment 10-4021 Motor Oil Supplement Assembly Lubricant - 16 0z
AED28139
Quantity:
Order today to get by 7-14 business days
This item qualifies for free delivery
Imported From: United States
At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.
BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.
Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.
If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.
Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.
All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.
While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.
Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.
BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.
All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.
All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.
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Visit the ACDelco Store
ACDelco GM Original Equipment 10-4021 Motor Oil Supplement Assembly Lubricant - 16 0z

AED28139
Quantity:
Order today to get by 7-14 business days
This item qualifies for free delivery
Imported From: United States
At BOLO, we work hard to ensure the products you receive are new, genuine, and sourced from reputable suppliers.
BOLO is not an authorized or official retailer for most brands, nor are we affiliated with manufacturers unless specifically stated on a product page. Instead, we source verified sellers, authorized distributors or directly from the manufacturer.
Each product undergoes thorough inspection and verification at our consolidation and fulfilment centers to ensure it meets our strict authenticity and quality standards before being shipped and delivered to you.
If you ever have concerns regarding the authenticity of a product purchased from us, please contact Bolo Support. We will review your inquiry promptly and, if necessary, provide documentation verifying authenticity or offer a suitable resolution.
Your trust is our top priority, and we are committed to maintaining transparency and integrity in every transaction.
All product information, images, descriptions, and reviews originate from the manufacturer or from trusted sellers overseas. BOLO is not affiliated with, endorsed by, or an authorized retailer for most brands listed on our website unless stated otherwise.
While we strive to display accurate information, variations in packaging, labeling, instructions, or formulation may occasionally occur due to regional differences or supplier updates. For detailed or manufacturer-specific information, please contact the brand directly or reach out to BOLO Support for assistance.
Unless otherwise stated, all prices displayed on the product page include applicable taxes and import duties.
BOLO operates in accordance with the laws and regulations of United Arab Emirates. Any items found to be restricted or prohibited for sale within the UAE will be cancelled prior to shipment. We take proactive measures to ensure that only products permitted for sale in United Arab Emirates are listed on our website.
All items are shipped by air, and any products classified as “Dangerous Goods (DG)” under IATA regulations will be removed from the order and cancelled.
All orders are processed manually, and we make every effort to process them promptly once confirmed. Products cancelled due to the above reasons will be permanently removed from listings across the website.
Description:
ACDelco E.O.S. (Engine Oil Supplement) Assembly Lubricant is specially formulated as an engine assembly lubricant that helps provide protection against run-in wear and piston scuffing. It also assists in protecting against run-in camshaft lobe and lifter scuffing resulting from insufficient lubrication. This product is not recommended for use as an additive to engine oil. For professional use only. Not for retail sale.
Reviews:
5.0 out of 5 stars It’s a GM requirement for Crate Motor installs.
(function() { P.when('cr-A', 'ready').execute(function(A) { if(typeof A.toggleExpanderAriaLabel === 'function') { A.toggleExpanderAriaLabel('review_text_read_more', 'Read more of this review', 'Read less of this review'); } }); })(); .review-text-read-more-expander:focus-visible { outline: 2px solid #2162a1; outline-offset: 2px; border-radius: 5px; } It’s probably snake oil, but GM requires you to use it when installing a GM crate motor to validate the 3yr/100k engine warrantee. So it’s liquid insurance. Really it’s a good idea to use whatever recommended lube in any new engine build or startup of a crate motor to prelube the engine to help ensure proper break-in to prevent premature bearing failure.
5.0 out of 5 stars as advertised
as advertised
5.0 out of 5 stars it does work
Amazing product
5.0 out of 5 stars Five Stars
Love this product!
5.0 out of 5 stars Best assembly lube ever invented!
This stuff works for GM, Mopar, Ford, Honda etc. I've never lost an engine on break-in when using this lube.
Similar suggestions by Bolo
More from this brand
Similar items from “Assembly”
Share with
Or share with link
https://www.bolo.ae/products/UO008V2U5OB