What is octane rating? What is cetane rating? When purchasing gasoline or diesel fuel you’ve likely noticed the selection of numbers available to purchase, whether it’s 87, 91, 98, etc. The numbers shown are the octane rating for gasoline, or the cetane rating for diesel fuel, and these numbers indicated properties about the fuel you’re buying. The octane rating tells you how resistant a fuel is to knock; another way of thinking about this is how much can you compress that fuel, mixed with air,

GST Number Explained! Most people don’t realise it, but a single GST number can reveal a lot about any registered business in India - and the funny part is, it’s printed everywhere: bills, boards, websites, even shop entrances. A GSTIN is a 15-digit ID that becomes mandatory once a service business crosses ₹20 lakh in turnover or a product business crosses ₹40 lakh. But those 15 digits aren’t random, every part of that number tells a story: - The first two digits show the state code (like 07 for