# COS-100 Synthetic Compressor Oil ISO 100, 55 Gal

Date: 2026-11-03

Canonical HTML URL: https://lubriloy.com/blog/cos-100-rotary-synthetic-compressor-oil-iso-100-55-gal

Compressor oils · 2026-11-03

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

COS-100 is Lubri-Loy rotary synthetic compressor oil in ISO viscosity grade 100, rated for 8,000 hours and supplied in a 55 gal drum. Buy direct from Lubri-Loy through the matching product page, with quality lubricants blended in the USA since 1949.

[View COS-100 Synthetic Rotary Compressor Oil ISO 100, 55 gal drum / COS-100](https://lubriloy.com/products/cos-100)

## Product specification summary

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

- **Product:** Synthetic Compressor Oil ISO 100

- **Compressor type:** Rotary

- **Base:** Synthetic

- **Viscosity grade:** ISO 100

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

- **Size:** 55 gal drum

## Rotary synthetic compressor oil, ISO 100

Catalog number COS-100 identifies Lubri-Loy Synthetic Compressor Oil ISO 100. It is a synthetic oil for rotary compressors, rated for 8,000 hours.

This article covers the 55 gal drum. Use the complete COS-100 catalog number, ISO 100 grade and drum size when discussing your order. Check your equipment's lubricant requirements before selecting an oil.

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

Lubri-Loy has blended quality lubricants in the USA since 1949. COS-100 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 exact compressor oil and your ordering needs.

## Buy COS-100 directly from Lubri-Loy

Visit the COS-100 product page on lubriloy.com for direct ordering options for the 55 gal drum.

Reference COS-100 when contacting Lubri-Loy about your order so the inquiry identifies the correct product and package.

[View COS-100 Synthetic Rotary Compressor Oil ISO 100, 55 gal drum / COS-100](https://lubriloy.com/products/cos-100)

## Frequently asked questions

### What is COS-100?

COS-100 is Lubri-Loy rotary synthetic compressor oil in ISO viscosity grade 100, rated for 8,000 hours.

### What package does this article cover?

This article covers catalog number COS-100 in a 55 gal drum.

### 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.

Based only on the supplied COS-100 catalog identity, rotary synthetic compressor oil description, ISO 100 viscosity grade, 8,000-hour rating, 55 gal drum size and Lubri-Loy's USA blending history since 1949.

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

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

Other ways to buy: [Also available on Motion](https://www.motion.com/products/sku/03260305)