Debunking the top 5 myths about transmission repair

Having a problem with your transmission can be daunting, and with so much misinformation circulating, it’s easy to fall victim to common myths. Misunderstanding the facts about your transmission maintenance can lead to costly mistakes or neglecting necessary repairs. Let’s debunk five common transmission myths to help you better understand your vehicle and avoid unnecessary expenses.

1: Transmissions only fail after high mileage

Debunked: While it's true your transmission is more likely to develop issues with age and high mileage, it can fail or have problems at any point if not properly maintained. Transmission wear is often tied to driving habits, maintenance practices, and even manufacturing defects. If you frequently drive in stop-and-go traffic, haul heavy loads, or are lax with your regular maintenance, your transmission could fail well before you get a significant number of kilometres on the clock. You should never ignore early signs of trouble, such as slipping gears or delayed shifting, regardless of your car’s age or mileage.

2: You only need to change transmission fluid every 100,000 kms

Debunked: While some manufacturers may suggest long intervals between transmission fluid changes, it’s not a one-size-fits-all recommendation. In fact, many experts advise changing the fluid far more frequently, especially if you drive in harsh conditions (like extreme heat or city driving). Over time, transmission fluid can become contaminated with debris and lose its effectiveness, leading to friction and heat buildup, which can damage the internal components. To keep your transmission in top shape, check your owner’s manual for the recommended intervals and consider changing the fluid every 50,000 km for added protection.

3: A transmission flush is the same as a fluid change

Debunked: Although both a flush and a fluid change involve replacing old transmission fluid, they are not the same thing. A transmission fluid change typically replaces only about 40-50% of the fluid, while a transmission flush replaces nearly all of the old fluid and cleans the system of debris and contaminants. Each service has its purpose: a fluid change is a regular maintenance task, while a flush may be necessary if the fluid is particularly dirty or if you're experiencing performance issues. However, it's crucial not to flush the system if it has already suffered significant damage, as this can dislodge particles and worsen the problem.