What is the difference between 5W-30 and 5W-20?

How Often Should You Change Your Oil? ... With a little explanation it's easy to understand what all of the letters and numbers mean on your tire's sidewall. Multigrade engine oils (both gasoline and diesel) are identified by two numbers separated by a W. The first number indicates how the oil performs at startup, or ... Sep 7, 2012 ... You see those cryptic combinations of letters and numbers on motor oil bottles everywhere. What do they mean? To decipher them, you have to ... Fire Extinguisher Classes · Class A puts out ordinary combustible fires (wood, paper, plastic, etc.) · Class B puts out flammable liquid fires (oil, gas, ... The octane number is actually the simple average of two different octane rating methods—motor octane rating (MOR) and research octane rating (RON)—that differ ... ... Oil and Gas Reporting Identification Number (OGRID). This is different from ... does not have employees must obtain a Federal Employer Identification Number (FEIN) ... Feb 25, 2020 ... The number before the W represents the viscosity (thickness)and rates the oil's flow at -17.8 degrees Celsius. So, a 5W-30 would thicken less than a 10W-30 but ... Sep 9, 2019 ... The numbers on the engine oil generally say 10W40 or 5W30. These numbers represent viscosity and temperature. Number on the left of the alphabet ... Jan 15, 2024 ... Furnace error codes are helpful diagnostic tools that are built right into most modern heating systems. They're usually a set of numbers (or a ... Do you know the UN/NA. ID number? Search for the. ID number in the. Yellow ... oil, ethanol). • Protective housing separate from manway. • Bottom outlet ...