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Express Car Care of Denver

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Transmission Maintenance Myths: Separating Fact from Fiction to Ensure Longevity and Reliability

April 3, 2024 by Denver Express Car Care

Cars are amazing, aren’t they? They get you where you’re going, and you usually don’t think much about them. Fill them up with gas, and they run.  

Newer models run like never before. Parts and systems are designed to last tens of thousands of miles. With the right amount of maintenance, you might not have to think about some of the systems at all. 

Take the transmission system, for example. A transmission system enables the vehicle to change gears, which gives you the ability to achieve different speeds. It regulates the distribution of power from the engine to each of the wheels. It’s a delicate balance of controlling the optimal range of RPMs (revolutions per minute) while providing the necessary torque (rotational force)to make the wheels move forward. 

Whether you have an automatic or a manual transmission (there aren’t many manual cars left on the road), a car can’t operate without it. 

Still, many drivers don’t fully understand the transmission system, or how to maintain it over time. They may believe one of the many myths drivers fall for, putting their cars in jeopardy of having significant transmission problems. 

Have you fallen for one of these transmission maintenance myths?

Myth #1: Transmission fluid lasts forever

While transmission fluid isn’t something you’ll have to replace routinely like motor oil, it is something that might need to be changed a time or two during its lifetime. 

Transmission Maintenance Myths: Separating Fact from Fiction to Ensure Longevity and Reliability

Traditional or conventional automatic transmission fluids typically need to be replaced every 30,000 to 60,000 miles. Some older vehicles may require more frequent changes. Newer synthetic transmission fluids often last longer and can normally go up to 100,000 miles or more before needing replacement. However, it’s essential to consult the vehicle’s manual for specific recommendations.

It’s crucial to follow the manufacturer’s recommended maintenance schedule outlined in the vehicle’s manual. They may specify both a mileage interval and a time interval (e.g., every 3 years), whichever comes first. The way you drive matters too. Heavy towing, frequent stop-and-go driving, or driving in extreme temperatures can accelerate transmission fluid degradation, necessitating more frequent changes.

Myth #2: Using additives can fix transmission problems

Transmission problems can be costly. That’s why there will always be companies that jump in offering options. Like transmission additives. They’ll make promises like:

  • Restores smooth shifting
  • Stops leaks
  • Fixes transmission slipping

Transmission fluid has several vital roles. 

  • It acts as a hydraulic fluid to allow shifting
  • It protects gears and bearings against wear and tear
  • It adds friction to ensure smooth, consistent shifting
  • It manages heat buildup

These additives promise to fix potential problems, but tests continually show transmission performance can become worse over time. They might work for a short time period, but they don’t continue to work well, and can even cause more damage to the transmission. That’s why most vehicle and transmission manufacturers warn against using them. 

If you have transmission problems, visit your mechanic to have the problem fixed rather than wasting money on a short-term fix. 

Myth #3: Flushes are always necessary

Transmission fluid flushes are one of those services that might be necessary … and might not. A lot of it depends on your car and the way you drive. 

Start by checking with your owner’s manual. Manufacturers will have guidelines for when transmission fluid should be replaced and how often. 

There are two approaches: a flush and a change. Flushing involves flushing the system with a cleaning solution, effectively flushing out old fluides with any accumulated contaminants. A flush will remove larger portions of the old fluid, as well as debris and contaminants from within the system. However, flushes may do more harm than good. 

A transmission flush involves forcefully pushing cleaning solutions through the transmission to remove contaminants. This process can dislodge debris and cause it to circulate throughout the transmission, potentially causing damage to sensitive components. The high-pressure nature of transmission flushes can damage seals and gaskets within the transmission, leading to leaks and other issues.

If the transmission is already experiencing issues such as slipping or rough shifting, a flush may not solve the underlying problem and could even exacerbate it.

This is why many mechanics recommend transmission changes rather than a flush. A transmission fluid change involves draining the old transmission fluid from the transmission pan and refilling it with new fluid. The technician will typically remove the transmission pan to access the fluid, drain it, replace the transmission filter (if applicable), and refill the transmission with new fluid.

Myth #4: Transmission problems mean it needs to be replaced 

Here’s the thing: transmission problems can manifest in dozens of ways. This is why it’s a good idea to keep your eyes and ears open for possible problems so you can spot them before minor issues become significant. Like most things, transmission problems start small, but can escalate quickly. 

Where does it start? Often, it might show up as a patch of red liquid underneath your car. This is a sign of a transmission fluid leak. 

Or maybe it manifests as a funny noise – humming, buzzing, grinding, or whirring. Maybe you’ll start to notice difficulty shifting, or slipping out of gear. 

Don’t assume the worst – these aren’t signs your transmission needs replacing. Instead, it’s an indication there’s an issue with your car. A technician can assess the problem, pinpoint what’s causing it, and provide you with the necessary solution. Remember, it’s always better to catch a problem early to avoid more serious problems down the road. 

Skip the Myths – Find a Transmission Service Technician you can Trust

It’s easy to fall prey to misinformation and myths that could potentially harm your vehicle. Rather than getting caught up in misconceptions, the key to ensuring the health and longevity of your transmission lies in finding a transmission service technician you can trust. 

A reputable transmission service technician has the knowledge and experience to diagnose transmission issues accurately and recommend appropriate maintenance or repairs.

Instead of relying on hearsay or questionable advice, a trusted technician will provide professional recommendations based on the specific needs of your vehicle, taking into account factors such as mileage, driving habits, and the condition of the transmission.

By choosing a trustworthy technician, you can rest assured that your transmission will receive quality service and workmanship, whether it’s a routine fluid change or a more complex repair. A reliable technician values honesty and transparency, providing clear explanations of the work that needs to be done and offering transparent pricing without hidden fees or unnecessary upsells. 

Ultimately, working with a transmission service technician you can trust provides peace of mind, knowing that your vehicle is in capable hands and that maintenance and repairs are being performed to the highest standards.

Can we offer you advice on your transmission? 

Filed Under: Transmission Tagged With: Transmission Maintenance Myths

Express Car Care
4200 E. Evans Ave. Denver, CO (map)
Phone: (303) 691-2760
Located just southeast of the Colorado Light Rail station

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