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COMPRO™ XL-S Compressor Fluids

  • Do I need to buy all my stock from you?
    We’d love it if you did, but no, you don’t have to order all your lubricants from us. Some customers jump in with two feet and consolidate all their lubricant stock into the EziStock system, while others like to dip their toes in first and start with a selection of lubricants and add to it as they see fit. As with any ordering situation, the lubricants we supply is completely up to you. Only items approved by you will ever go into the system, so you won’t be finding any surprises on your monthly invoice. If you’re not wanting to keep all your eggs in one basket, you’re perfectly entitled to keep purchasing from other suppliers as well, however only EziStock items are to be kept in the EziStock storage to enable the replenishment cycle to run smoothly.
  • What happens if I reassess pricing down the track and find its cheaper with another supplier?
    It’s great to keep your finger on the pulse and be aware of all your options to make sure you’re getting the best value for your business. With EziStock you are free to add or remove stock items from the system at any time, so should you want to switch an item to another supplier you can. While it can be tempting to jump over to another supplier offering a slightly cheaper price for a product, the EziStock system also provides savings in another way, and that’s in terms of the time savings of not having to manage stock and place orders. When you include the labour cost of stock management to your product purchase cost, customers often find it would cost them more to make the switch. Of course, if you simply find the system is not for you, that’s absolutely fine. There’s no locked in contracts, and if you want it out, we’ll take it out. No questions asked, and no hard feelings.
  • Who are your replenishers?
    Our national onsite inventory replenishment team are locally contracted individuals whose sole responsibility is to count the stock, tidy and replenish. They’re not part of the sales team, they’re just a friendly bunch of folks keen to get the job done efficiently. Outside of the replenishment, we have a dedicated EziStock operations manager who does all the behind-the-scenes work including training and managing the local replenishers, organising and processing monthly EziStock orders, and adjusting stock where requested. He’s also likely to be the friendly face you’ll see setting up your EziStock storage facilities when they get installed.
  • How can we keep control if you take over stock management?
    It’s completely understandable that the prospect of handing over your stock management to a supplier can be a little daunting. In running your operations, you want to have control, and the good news is, you still will. EziStock is not about handing over control to us. Throughout the entire process everything is checked and approved by you. Nothing goes into the system without your consent, and reporting allows you to see exactly what is being used and charged for each month – the system is very transparent.
  • What if we already have a preferred supplier we like to buy from?
    There’s no doubt about it, we’re a supplier and we want your business. EziStock is a system developed for businesses looking to get the best bang for buck both in terms of the consumables they’re purchasing, but also in enabling better efficiencies and therefore productivity in the workshop. If you have another supplier you prefer to work with, that’s fine, it’s completely up to you – no hard feelings.
  • What happens if EziStock doesn't work for us?
    If the solution simply isn’t working for you, we can remove it. No worries, no hurt feelings. There’s no locked in contracts, and at the end of the day, if the solution isn’t benefitting you, it’s not benefitting us. It has to save you time and money.
  • What’s in it for Duramach? What’s the catch?
    There’s no catch. EziStock is a fully open, transparent solution, with reporting so you can see exactly what’s going on. What’s in it for us? Well we’ve got everything to gain by looking after you and your business. Duramach is not a one off sale, it’s having a loyal customer in 10 years time that we’re able to continue providing value for. Basically, your success is our success.

COMPRO™ XL-S Compressor Fluids are premium quality lubricants specifically designed to provide effective lubrication in air compressors.

Compro XL-S fluids are formulated to include Petro-Canada’s own pure hydrotreated base oils from the HT purity process, and / or Petro-Canada’s own highly refined and severely processed hydroisomerized and catalytically dewaxed base oils for lubricant performance. Utilizing more than 25 years of formulating experience, Petro-Canada fortifies these thermally stable fluids with a specially selected additive combination to ensure high performance synergy in the finished lubricant.


With excellent oxidation stability, corrosion, deposit control and low volatility, COMPRO XL-S provides up to 8,000 hours of continuous worry-free service in rotary screw air compressors for lubrication, sealing and effective heat removal for efficient compressor performance.

Features & Benefits

  • Excellent resistance to oxidative breakdown caused by exposure to air at high discharge temperatures

    • Reduces oil thickening, maintaining good fluidity through pumps, lines, filters and actuators.​

    • Controls build-up of acidic by-products that can accelerate oil deterioration and promote corrosion

    • Controls build-up of sludge and varnish to ensure smooth operation through fine tolerances

  • Higher thermal stability reduces carbon deposit formation

    • Improves compressor operating efficiency​

    • Reduces valve sticking and maintains heat transfer efficiency of intercoolers

  • Improved viscosity index and good low temperature properties

    • Improves film thickness at elevated temperatures​

    • Better cold temperature fluidity for low temperature start-up.

  • Good protection against wear

    • Prolongs the service life of working components such as rotor bearings, vane tips, piston rings and liners​

  • Protects against rust and corrosion

    • Helps to extend component life, especially when running intermittent service in high humidity conditions​

    • Good water separation for water removal and to minimize emulsions

  • Low volatility reduces oil carry-over into the air system

    • May reduce fluid consumption for reservoir top-up​


While COMPRO XL-S Compressor Fluid may be used to lubricate and cool all types of rotary vane, reciprocating, centrifugal and lobe air compressors, it is specifically designed to significantly extend service life in rotary screw compressors. It is available in five ISO viscosity grades: 32, 46, 68, 100 and 150 to cover most compressor applications.


COMPRO XL-S is suitable for use in compressors that handle air, and inert gases such as nitrogen, argon, hydrogen, neon, helium, carbon dioxide, carbon monoxide and blast furnace gas.

Operational Considerations

The full benefits of a change to COMPRO XL-S Compressor Fluid will only be realized by minimizing contamination with the previously used oil. Certain makes of compressors do not permit complete draining, so if the drained oil is heavily oxidized (shown by significant increase in the oil’s acid number and viscosity), recharging with COMPRO XL-S may not result in optimum performance and fluid service life.


While COMPRO XL-S is fully compatible with most mineral and synthetic compressor fluids, it should not be mixed or contaminated with fluids containing polyalkylene glycols or silicones.


Food industry registration

  • NSF H2 listed (no allowable food contact)

COMPRO compressor fluids are suitable for use in most makes of compressors, including:

  • ABAC

  • Allis Chalmers

  • Atlas-Copco

  • Ceccato

  • Champion Pacific

  • Chicago Pneumatic Tool

  • Compair Canada

  • Copper-Bressemer

  • Copper Industries

  • Cooper-Penjax

  • Davey Compressors

  • Dresser Industries

  • Elliot Company

  • Fuller Company

  • Gardner-Denver

  • GrimmerSchmidt

  • Ingersoll-Rand

  • Joy Manufacturing

  • Kaeser Compressors

  • Kellogg-American

  • Le Roi

  • M&D Pneumatics


  • Mark

  • Quincy Compressors

  • Schramm Inc.

  • Sullair Compressors

  • Sundstrand Corp.

  • Worthington Compressors

Compressor Fluid Grade Selection & Service Life

Note: The above are general guidelines only.


Certified Petro-Canada Product

Duramach partner with Petro-Canada to supply world-class advanced lubricants, specialty fluids and greases developed from over 30 years of research and development.


Petro-Canada lubricants continue to perform beyond expectations in virtually every industry around the globe. 

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