I'm sorry, but the question "what grade is jack oil" seems to misunderstand or conflate terms from potentially different fields. If you're referring to "jack oil," it's commonly associated with hydraulic fluid used in various types of jacks (e.g., car jacks, floor jacks) for lifting heavy loads. The "grade" in the context of jack oil often refers to its viscosity and the specific hydraulic oil type recommended by the manufacturer, which can vary based on the device's requirements and operating temperature range. For automotive or mechanical applications, always consult the user manual or manufacturer recommendation to determine the appropriate oil grade. This ensures the safety and longevity of the equipment. Hydraulic jack oil typically doesn't have a "grade" like motor oils (e.g., 10W-30), but rather, specific formulations designed for optimum performance in hydraulic systems. Using the wrong type of hydraulic fluid can lead to equipment failure or decreased performance.

To change your dye in ESO (Elder Scrolls Online), you first need to unlock the dye colors by accomplishing Achievements within the game. Once you've unlocked dyes, access any Dye Station, typically found in major cities. In the Dye Station interface, choose the outfit or piece of gear you wish to dye, select the desired dye from your available palette, and apply it. Each piece of gear can have up to three different dye channels, allowing for custom color combinations. Keep in mind, applying dyes is free and can be redone as many times as you like to suit your aesthetic preferences.

Fish emulsion fertilizer is a natural and organic product, made from the by-products of the fish industry. It's rich in nitrogen, which makes it an excellent choice for promoting plant growth. To apply, first dilute the emulsion with water, as it's highly concentrated. A common ratio is 1 tablespoon of fish emulsion per gallon of water, but follow the instructions on the package. Apply this mixture directly to the soil around your plants, or use it as a foliar spray, making sure to coat the leaves evenly. It's best applied in the early morning or late afternoon to avoid the strong sun. Repeat every 2-4 weeks during the growing season for best results. Avoid over-application, as excessive nitrogen can harm plants.