Product specification summary
- Catalog No. / MFR #
- AEO-40
- Product
- Monograde Engine Oil - Diesel 40W
- Viscosity grade
- SAE 40 monograde
- Size
- 55 gal drum
- Catalog product line
- Monograde Engine Oils - Diesel
- Availability
- Factory order (made to order)

AEO-40: SAE 40 monograde diesel engine oil
Catalog number AEO-40 identifies Lubri-Loy Monograde Engine Oil - Diesel 40W, supplied in a 55 gal drum. It belongs to the Monograde Engine Oils - Diesel catalog product line.
Keep the complete catalog number AEO-40, SAE 40 grade and 55 gal drum size together when discussing an order or requesting a quote.
Lubri-Loy quality, blended in the USA since 1949
Lubri-Loy has blended quality lubricants in the USA since 1949. AEO-40 is part of its monograde diesel engine oil offering.
Buying directly from Lubri-Loy gives you a direct point of contact for questions about this SAE 40 oil and its 55 gal drum size.
Order AEO-40 directly from Lubri-Loy
Visit the AEO-40 product page on lubriloy.com to order directly or request a quote. The prominent links near the top and end of this article lead to that exact product page.
AEO-40 is a factory-order item, made to order. Lead time may apply, so contact Lubri-Loy to discuss timing before ordering.
View AEO-40 Monograde Diesel Engine Oil SAE 40, 55 gal drum / AEO-40
Frequently asked questions
What is AEO-40?
AEO-40 is Lubri-Loy SAE 40 monograde diesel engine oil, also described as Diesel 40W.
What size is covered here?
This article covers the 55 gal drum identified by catalog number AEO-40.
How can I buy this product from Lubri-Loy?
Open the matching Lubri-Loy product page. Use Add to cart or Buy now when available, or Request a quote for quote-only products. Direct orders include free shipping within the US.