Milton ISO-100 Compressor Oil, 32 oz — Non-Synthetic Conventional Oil with Low-Temp Protection

Milton ISO-100 (30W) High Performance Conventional Air Compressor Oil in a 32 oz bottle is a non-synthetic, non-detergent lubricant formulated to protect and extend the life of oil-lubricated reciprocating and centrifugal compressors.

Milton's updated formula delivers improved lubricity and better low-temperature performance while resisting oxidation, corrosion, foaming and sludge buildup. This ISO-100 (SAE 30) grade is designed to separate readily from water, limit carbon-forming tendencies, and perform in ambient temperatures as low as -15°F (-26°C). Packaged in a convenient 32 oz container, it suits maintenance routines for shop compressors and equipment that require a conventional compressor oil.

How does this oil protect my compressor components?

The Milton ISO-100 formula provides a protective film that reduces metal-on-metal wear and retards oxidation that can form varnish and sludge. Its corrosion inhibitors help preserve internal surfaces, and the non-detergent base minimizes additive residues that promote foaming.

• Exceptional wear protection for pistons, rings and bearings
• Oxidation resistance to slow varnish and sludge formation
• Corrosion inhibitors to protect internal metal parts
• Non-detergent composition that reduces foaming tendency

Will this oil separate from water and perform in cold conditions?

Yes — the oil is formulated to separate quickly from entrained water, simplifying condensation removal and reducing emulsions. It also maintains fluidity and protective properties down to approximately -15°F (-26°C), making it suitable for colder workshop environments.

• Low carbon-forming tendencies for cleaner internals
• Fast water separation for easier drain-offs and maintenance
• Maintains viscosity and lubricity at low temperatures

Which compressors should use Milton ISO-100 non-synthetic oil?

Use this ISO-100 (30W) non-synthetic oil where the compressor manufacturer specifies a non-detergent conventional lubricant. It is appropriate for many oil-lubricated reciprocating compressors and certain centrifugal models requiring this viscosity and formulation.

• Recommended for oil-lubricated reciprocating compressors
• Suitable for centrifugal compressors that call for non-detergent oils
• Not a synthetic — follow manufacturer guidance when synthetics are specified

How do I use and store the 32 oz Milton bottle safely?

Top up or change compressor oil following the equipment manufacturer's service intervals and procedures. Store the sealed 32 oz container upright in a cool, dry place, away from direct heat and ignition sources, and follow all handling and disposal regulations for used oil.

• Use appropriate PPE and tools when adding or draining oil
• Keep container sealed to prevent contamination
• Dispose of used oil per local environmental guidelines

Who is this for: Technicians, shop owners and maintenance professionals who service oil-lubricated reciprocating or compatible centrifugal air compressors and need a reliable, non-synthetic ISO-100 (SAE 30) oil. Choose Milton 32 oz when manufacturer guidance calls for a conventional, non-detergent lubricant with strong wear, oxidation and corrosion protection and good low-temperature performance.