For the most curcumin, be sure to use turmeric rather curry powderâa study analyzing curcumin content in 28 spice products described as turmeric or curry powders found that pure turmeric powder had the highest concentration of curcumin, averaging 3.14% by weight.
The most common type of octane rating worldwide is the Research Octane Number (RON). RON is determined by running the fuel in a test engine with a variable compression ratio under controlled conditions, and comparing the results with those for mixtures of iso-octane and n-heptane.
If regular unleaded is all your car needs, donât spend extra on higher octane gas. Your vehicle likely will not see any improvement in performance or fuel economy â itâs not a âtreatâ for your vehicle! Premium Unleaded (91+ octane). This type of fuel has a higher octane level, typically between 91 and 93.For example, regular unleaded might be around 87 octane while premium would be 90 or 91.our vehicle likely will not see any improvement in performance or fuel economy â itâs not a âtreatâ for your vehicle! Premium Unleaded (91+ octane). This type of fuel has a higher octane level, typically between 91 and 93. For example, regular unleaded might be around 87 octane while premium would be 90 or 91.