Aviation oil grades are specifically formulated for aircraft engines, prioritizing properties like high temperature performance and low temperature fluidity. These grades, such as 100W or 120, correlate loosely to the viscosity of automotive oils under the Society of Automotive Engineers (SAE) ratings, like SAE 50 or SAE 60. However, aviation oils also include additives tailored for the unique operational demands of aircraft, such as higher anti-wear capabilities and protection against rust and corrosion, which are not addressed by the SAE standards aimed at automotive engines. The SAE classification focuses more on the oil's viscosity at various temperatures and less on these specialized performance criteria. Therefore, while there might be superficial comparisons in terms of viscosity, the formulation and intended use case of aviation versus automotive oils are significantly different. Always use the oil specified by the aircraft's manufacturer to ensure safety and engine integrity.

No, zircon and zirconium are not the same. Zircon, or zirconium silicate (ZrSiO4), is a natural mineral used in jewelry due to its high refractive index and strong dispersion, giving it a brilliant shine similar to diamonds. It is found in various colors, including clear, green, blue, and brown. In contrast, zirconium is a metallic element with the symbol Zr and atomic number 40. It is extracted from zircon as well as other minerals and is known for its strong resistance to corrosion, making it valuable in nuclear reactors, chemical plants, and as an alloying agent in materials that are exposed to harsh conditions. Thus, while zircon is a gemstone used for adornment, zirconium is a metal used in various industrial applications.

Yes, Forgeworld products are made from a type of resin, a material chosen for its ability to capture intricate details, which is essential for the complex and unique models Forgeworld is known for. This differs from the plastic used in most Games Workshop's mainstream Warhammer 40,000 and Age of Sigmar ranges. Resin allows for sharper details but requires more preparation before painting, such as washing to remove any release agent and careful removal of flash. The material's characteristics also mean models can be more fragile and require super glue for assembly, unlike the plastic kits that can often be snapped together. While resin can be more challenging to work with, many hobbyists appreciate the high level of detail and uniqueness it brings to their collections.