# COS-100-640 Synthetic Compressor Oil 100, 5 Gal

Date: 2026-11-03

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Compressor oils · 2026-11-03

[Buy direct from Lubri-Loy - free shipping: COS-100-640](https://lubriloy.com/products/cos-100-640)

COS-100-640 is Lubri-Loy Synthetic Compressor Oil 100, a rotary synthetic compressor oil in ISO viscosity grade 100. Supplied in a 5 gal size and rated for 8,000 hours, it is a factory-order item. Buy direct from Lubri-Loy, with quality lubricants blended in the USA since 1949.

[View COS-100-640 Synthetic Rotary Compressor Oil ISO 100, 5 gal / COS-100-640](https://lubriloy.com/products/cos-100-640)

## Product specification summary

- **Catalog No. / MFR #:** COS-100-640

- **Product:** Lubri-Loy Synthetic Compressor Oil 100

- **Product type:** Rotary synthetic compressor oil

- **Viscosity grade:** ISO 100

- **Service rating:** 8,000 hours

- **Size:** 5 gal

- **Stock status:** Factory order

## Rotary synthetic compressor oil, ISO 100

Catalog number COS-100-640 identifies Lubri-Loy Synthetic Compressor Oil 100. It is a synthetic oil for rotary compressors, with an ISO 100 viscosity grade and an 8,000-hour rating.

This article covers the 5 gal size. Use the complete COS-100-640 catalog number and the package size when discussing your order with Lubri-Loy.

## Lubri-Loy quality, blended in the USA since 1949

Lubri-Loy has blended quality lubricants in the USA since 1949. COS-100-640 is part of its rotary synthetic compressor oil offering.

Buying directly from Lubri-Loy gives you a direct point of contact for questions about this compressor oil and your ordering needs.

## Buy COS-100-640 direct from Lubri-Loy

Use the linked COS-100-640 product page on lubriloy.com to buy direct from Lubri-Loy. The prominent product links near the top and end of this article lead to that exact catalog item.

COS-100-640 is a factory-order item. Plan ahead and contact Lubri-Loy to confirm current ordering arrangements for the 5 gal size.

[View COS-100-640 Synthetic Rotary Compressor Oil ISO 100, 5 gal / COS-100-640](https://lubriloy.com/products/cos-100-640)

## Frequently asked questions

### What is COS-100-640?

COS-100-640 is Lubri-Loy Synthetic Compressor Oil 100, a rotary synthetic compressor oil in ISO viscosity grade 100, rated for 8,000 hours and supplied in a 5 gal size.

### Is COS-100-640 a factory-order item?

Yes. COS-100-640 is a factory-order item. Contact Lubri-Loy to confirm current ordering arrangements.

### 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.

[Matching product page](https://lubriloy.com/products/cos-100-640) · [All product guides](https://lubriloy.com/blog/product-guides)

[Buy direct from Lubri-Loy - free shipping: COS-100-640](https://lubriloy.com/products/cos-100-640)

Other ways to buy: [Buy on Motion](https://www.motion.com/products/sku/03299468)