Tips & Tricks

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How often should I change my Automatic Transmission Fluid?

Some automatic transmissions in 2002 and newer vehicles have “100,000 mile fluid”.   The perception is that you don’t need to change the fluid for 100,000 miles.  This all depends on the type of driving you do.  The “100,000 mile” fluid is based on normal transmission operating temperatures of 175 F and not pulling a trailer or heavy load.  Maintaining this type of fluid is no different than maintaining the old style of fluid.

Let’s talk about driving styles. For example you can drive up I-70 on any given summer weekend and see how many vehicles are towing a trailer or heavy load and driving on the shoulder because the trailer or load is so heavy.  You may even be one of these drivers. This type of driving increases the normal operating temperatures inside the transmission and then the oxidation rate doubles with each 20 degrees increase in transmission operating temperature.  The useful life of the fluid is now cut in half.  At 235 degrees the life expectancy is only 12,000 miles.  At 295 degrees the life expectancy is 1500 miles.  Above 300 degrees the metals inside the transmission will warp, and distort in varying degrees depending on the severity of the overheating.
 
Here are a few tips to help prevent overheating and damage to your transmission: 

1. If your transmission keeps shifting up and down drop it down one gear or push the tow/haul button on the shifter. 
2. Watch your Engine temperature and keep it “Cool”.  
3. Visit the Colorado Select shop closest to you and have your transmission fluid inspected. They can tell if your fluid needs serviced once they inspect it.
4. If you notice a leak in your vehicle have it checked right away.
5. When you wash your vehicle make sure the front of the grille and radiator are free of all bugs and debris.    
6. Establish a relationship with one of our Colorado Select AutoCare Centers and they will help you with a maintenance schedule that fits your driving and vehicle needs. 

By following these recommendations you should be able to get many trouble free miles from your automatic transmission. Remember these are just tips and recommendations. If you ever have a question about your transmission or any other system on your vehicle be sure to drop by one our friendly neighborhood Colorado Select AutoCare Centers and they will be happy to give you “no cost” advice on what you should do. We believe that informed drivers are the best drivers.