# AEO-40-640 Monograde Diesel Engine Oil, 5 Gal

Date: 2026-11-04

Canonical HTML URL: https://lubriloy.com/blog/aeo-40-640-monograde-diesel-engine-oil

Engine oils · 2026-11-04

[Buy direct from Lubri-Loy - free shipping: AEO-40-640](https://lubriloy.com/products/aeo-40-640)

Lubri-Loy AEO-40-640 is Monograde Engine Oil - Diesel in a 5 gal size. This factory-order item belongs to the Monograde Engine Oils - Diesel product line. Lubri-Loy's commitment to quality continues with lubricants blended in the USA since 1949. Order directly through the matching AEO-40-640 product page.

[View Monograde Diesel Engine Oil, 5 gal / AEO-40-640](https://lubriloy.com/products/aeo-40-640)

## Product specification summary

- **Catalog No. / MFR #:** AEO-40-640

- **Product:** Monograde Engine Oil - Diesel

- **Catalog product line:** Monograde Engine Oils - Diesel

- **Size:** 5 gal

- **Availability:** Factory order

## Identify the 5 gal AEO-40-640 product

AEO-40-640 identifies the 5 gal product in Lubri-Loy's Monograde Engine Oils - Diesel line.

Use the complete catalog number and size together when discussing your order with Lubri-Loy. The links in this article open the matching product page rather than another package.

## Lubri-Loy quality since 1949

Lubri-Loy has blended quality lubricants in the USA since 1949. AEO-40-640 is part of that lubricant offering.

Buying directly from Lubri-Loy connects your product questions and order with the company behind the oil.

## A factory-order item

AEO-40-640 is a factory-order item. Contact Lubri-Loy about your order and reference AEO-40-640, Monograde Engine Oil - Diesel, 5 gal.

Keep that exact catalog number on your purchasing reference so the product and size remain clear.

## Buy AEO-40-640 direct from Lubri-Loy

Visit the AEO-40-640 product page on lubriloy.com to order directly from Lubri-Loy.

Use the prominent buttons near the top and end of this article to open the matching 5 gal product page.

[View Monograde Diesel Engine Oil, 5 gal / AEO-40-640](https://lubriloy.com/products/aeo-40-640)

## Frequently asked questions

### What is Lubri-Loy AEO-40-640?

AEO-40-640 is Monograde Engine Oil - Diesel in the 5 gal size.

### Is AEO-40-640 a factory-order item?

Yes. AEO-40-640 is listed as a factory-order item.

Based only on the supplied AEO-40-640 facts: Monograde Engine Oil - Diesel; Monograde Engine Oils - Diesel product line; 5 gal size; factory order; item 03690037; and Lubri-Loy quality lubricants blended in the USA since 1949.

[Matching product page](https://lubriloy.com/products/aeo-40-640) · [All product guides](https://lubriloy.com/blog/product-guides)

[Buy direct from Lubri-Loy - free shipping: AEO-40-640](https://lubriloy.com/products/aeo-40-640)

Other ways to buy: [Also available on Motion](https://www.motion.com/products/sku/03690037)