Oddly, there is some debate over how often to change your vehicle's transmission fluid, and in some cases, debate over whether to change it at all. First, changing the transmission fluid is unlikely to cause your transmission to fail if it's flushed and replaced properly. So, the argument that you should leave it alone even with hundreds of thousands of miles on the odometer doesn't hold up. Second, changing the transmission fluid doesn't magically fix more serious issues like rough shifting or gear slipping. With that out of the way, let's look into the need to change the transmission fluid in your car. 

In order to determine when you're due for a transmission fluid change, you first should check your owner's manual. If you have an automatic transmission, the manual will likely recommend changing the fluid every 100-thousand miles, give or take a few miles. For manual transmissions, the maintenance schedule will vary much more. However, most mechanics wil recommend you change it every 50-thousand miles to avoid any potential problems and allowing the fluid to deteriorate. 

Who should you listen to? Well, there isn't a definite answer on when to replace your transmission fluid. Like other fluids in your vehicle, transmission fluid breaks down over time. As it deteriorates, it will turn a darker color, and can even take on a burned smell. For this reason, it's a good idea to periodically check your transmission fluid as you approach the 50-thousand mile mark. You can also check for debris and dirt that can get into the fluid and also affect its efficacy. These factors suggest is might be time to change your transmission fluid, but a change in color, for example, doesn't necessarily mean a change is vital. 

The way you drive your vehicle plays a significant part in when it's time to change your transmission fluid too. If you live in a big city and are subject to frequent stop-and-go driving, or if you often haul trailers or heavy loads, your transmission will deteriorate faster than normal. This activity raises the temperature of your transmission, which in turn strains the fluid as it tries to lubricate and cool. 

The type of car you drive also impacts how your transmission fluid should be changed. For example, some manufacturers call for a specific type of fluid to always be used and warn that other types could damage the vehicle. If you have an automatic transmission, you may also have filters that should be cleaned or replaced when your transmission fluid is replaced. 

For answers to questions like these, and to ensure that your BMW, Mercedes or Hummer H1 are properly cared for, contact us at Benzin Motor Works.