I Tried Old Mechanic Tricks with Transmission Fluid… Here’s What Happened

Video Description

Old-school mechanics swear that transmission fluid can clean carbon, fuel injectors, and even sludge inside your engine. But does it really work — or is it just a smoky myth? Today, we test three classic ATF tricks to find out. In this video, I test three old mechanic myths that all use transmission fluid (ATF) to “clean” your engine. We’ll test it through the intake, in the fuel, and in the oil to see which ones actually work and which ones are just garage legends. You’ll see how ATF burns in the intake, if it affects idle or performance when mixed with gas, and finally — whether it actually removes sludge when added to your oil before an oil change. 🧰 Tests Performed: 1️⃣ ATF through the intake (carbon clean trick) 2️⃣ ATF in the fuel (injector cleaner myth) 3️⃣ ATF in the oil (pre-oil change flush) 💬 Have you tried any of these? Comment below which old mechanic trick you want me to test next! 🔧 Subscribe for more DIY car experiments, mechanic myth-busting, and real-world tests! #mechanicmyths #transmissionfluid #carrepair #DIYmechanic #carcleaning #ATFexperiment