12 Mechanic Tricks BANNED by Automakers (But They Work and Save Fuel)

Most drivers have no idea their car could run smoother, respond faster, use less fuel, and potentially last much longer with a few simple tricks. In this video, you'll discover 12 car tricks involving tire pressure, ECU resets, transmission fluid, MAF sensor cleaning, spark plugs, carbon buildup, cold air intakes, oxygen sensors, and more. Some of these tricks cost almost nothing. Others can save hundreds or even thousands of dollars in repairs. And the final trick is different from everything else on the list—because removing a catalytic converter can actually violate federal emissions law in the United States. Some procedures shown or discussed may not be appropriate for every vehicle. Always check your owner's manual, local laws, emissions regulations, and manufacturer specifications before modifying or servicing your car. Subscribe to AutoJ World for more hidden car features, maintenance secrets, mechanic tricks, and ways to make your vehicle last longer.