The TRUTH About - 0W-20, 5W-30 & 5W-40 - Most Drivers Use The WRONG One

The oil on your engine cap is not protecting your engine. It is optimizing your manufacturer's fuel economy rating. That is not an opinion. Toyota confirmed it in an internal bulletin. Right now, in millions of cars, the wrong oil is accelerating engine wear, maybe yours. We ran three oils through the same engine, same

conditions, same intervals. 22,500 miles of data. The winner was not the one the manual recommends, and the loser is in more cars right now than any other oil on the market. This test ran 22,500 miles of identical driving data. Oil analysis, wear metals, viscosity breakdown, temperature logs. We are not guessing. By the end of this, you will know

exactly which oil your engine actually needs, and the last number changes everything. Before we get into the data, there is something the dealer will never tell you. Uh, the oil specification on your cap was not chosen for engine protection. [music] It was chosen for regulatory compliance, for a number on a government fuel

economy spreadsheet. This is not speculation. Toyota documented it. Section five shows exactly how far it goes. First, what the numbers actually mean. Section one. Why oil choice actually matters. Most drivers treat oil like a checkbox. Change it, done, move on. But oil is the only barrier between spinning metal and destruction at temperatures past 500° F between piston

rings and cylinder walls. Get it wrong and wear happens slowly, invisibly, for years. The codes are not random. First number, cold start flow. Those first seconds after startup cause more engine wear than the hours of highway driving combined. Second number, hot protection. How thick the oil film stays at full operating temperature. Higher second number, stronger film,