Extension hoses can be used with various types of oil, but their compatibility depends on several factors, including the hose material, the type of oil, and the operating conditions. 
1. **Material Compatibility**: Extension hoses are made from different materials such as rubber, PVC, or metal. Each material has specific properties that determine its resistance to different types of oil. For instance, rubber hoses are generally compatible with petroleum-based oils, while certain synthetic oils may require hoses made from more specialized materials like PTFE or Viton.
2. **Oil Type**: Oils can be mineral-based, synthetic, or bio-based, each with unique chemical compositions. Some oils may contain additives that can degrade certain hose materials over time. It's crucial to ensure that the hose material is resistant to the specific oil type being used.
3. **Temperature and Pressure**: The operating temperature and pressure can affect hose performance. High temperatures can cause some materials to soften or degrade, while high pressure can lead to hose failure if the hose is not rated for such conditions. Always check the hose specifications for temperature and pressure ratings to ensure safe operation.
4. **Application**: The intended application also influences hose selection. For example, hoses used in automotive or industrial settings may require additional features like abrasion resistance or flexibility.
5. **Regulatory Standards**: Some applications may require hoses to meet specific industry standards or certifications, ensuring they are safe and effective for use with certain oils.
In summary, while extension hoses can be used with many types of oil, it is essential to select the appropriate hose based on material compatibility, oil type, operating conditions, and application requirements to ensure safety and longevity.