A mechanic with nearly a million followers explains why the concept of lifetime fluids is a misconception.

A significant discussion surrounds the topic of lifetime fluids used in automobiles.

Auto mechanics are among the most critical aspects of the automotive industry. However, they often disagree with automakers on several topics. In particular, many mechanics disagree with the idea of lifetime fluids for cars. Recently, one took to TikTok to explain why he believes lifetime fluids to be more of a myth than some of his colleagues. Of course, some feel not believing in changing these fluids could cause transmission problems.

Many auto mechanics give advice online. Naturally, the information they provide is based on their vast experience working on cars. Recently, a mechanic from Royalty Auto Service in Texas took to their TikTok account to share his opinion on lifetime fluids. In particular, he’s discussing transmission fluid. He begins the video by saying he’s working on a Toyota Avalon after the dealership refused to service the transmission. For context, it was a 2013 model with over 100,000 miles. 

Like many auto mechanics, he then expresses his frustration with the idea behind lifetime fluids. In essence, he compares the transmission fluid to the engine oil and then jokes that they can both be “lifetime fluids,” as you can decide not to replace it until either component blows up. 

He continues by stating, “The real question is, can servicing extend the life of the transmission? The answer is absolutely yes, without a doubt.” Following this, the video shifts focus to the topic of transmission flushes, a subject that sparks considerable debate