# 2005 Dodge Magnum R/T transmission **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** magnum, dodge\ **Created:** [October 30, 2012, 3:57am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247 "2012-10-30T03:57:45Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![classicr](https://avatars.discourse-cdn.com/v4/letter/c/48db29/32.png) [@classicr](https://community.cartalk.com/u/classicr)\ **Post date:** [October 30, 2012, 3:57am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/1 "2012-10-30T03:57:45Z")
I have a 2005 Dodge Magnum R/T with 130,000 miles. I just got it in June 2012. A mechanic at the Dodge dealer told me I needed to change/flush the trans. I have been told that you should not do this to a car with over 80,000 miles. Something to do with the trans getting used to the old fluid and when you add new thinner fluid it caused problems. Is this true? Should I flush the trans? ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [October 30, 2012, 4:14am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/2 "2012-10-30T04:14:46Z")
Follow the fluid change intervals and recommendations in the car’s owner’s manual. ---
**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\ **Post date:** [October 30, 2012, 4:38am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/3 "2012-10-30T04:38:05Z")
I don’t know if you should flush it, but you should change the fluid every 30,000 to 40,000 miles. If you have access to the innards through a cover plate, pull it off and clean the filter. Someone more familiar with the Dodge can tell you whether flushing is OK. ---
**Author:** ![lion9car](https://avatars.discourse-cdn.com/v4/letter/l/59ef9b/32.png) [@lion9car](https://community.cartalk.com/u/lion9car)\ **Post date:** [October 30, 2012, 5:49am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/4 "2012-10-30T05:49:21Z")
Do what the owner’s manual says. If the transmission fails with the new fluid, it was going to fail anyway with the old fluid, only probably sooner. ---
**Author:** ![classicr](https://avatars.discourse-cdn.com/v4/letter/c/48db29/32.png) [@classicr](https://community.cartalk.com/u/classicr)\ **Post date:** [October 30, 2012, 6:02am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/5 "2012-10-30T06:02:13Z")
I don’t know the full history of the car. I am not sure of the maintenance. I just don’t want my trans to blow up. ---
**Author:** ![jtsanders](https://avatars.discourse-cdn.com/v4/letter/j/c2a13f/32.png) [@jtsanders](https://community.cartalk.com/u/jtsanders)\ **Post date:** [October 30, 2012, 6:15am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/6 "2012-10-30T06:15:04Z")
If you don’t change the fluid, it is guaranteed to fail. ---
**Author:** ![mark9207](https://avatars.discourse-cdn.com/v4/letter/m/71c47a/32.png) [@mark9207](https://community.cartalk.com/u/mark9207)\ **Post date:** [October 30, 2012, 7:44am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/7 "2012-10-30T07:44:54Z")
This is just a myth that refuses to die, sort of like the one about all Dodge transmissions are complete garbage that are guaranteed to fail very early in life, and the one that says all Japanese cars will run forever with no maintenance while all domestic makes are throwaway junk that breaks down all the time. Myths. Actually, replacing the fluid (and filter if it’s serviceable) is an excellent way to extend the life of your transmission (better late than never), provided you use the correct fluid, which is probably ATF+4 in your case. Check your owner’s manual as this is vital to your transmission’s health. In fact, this is how the Mopar transmission myth came into being. ATF+4 is not the same as the cheapest stuff you can find at Walmart. ---
**Author:** ![EllyEllis](https://avatars.discourse-cdn.com/v4/letter/e/f14d63/32.png) [@EllyEllis](https://community.cartalk.com/u/EllyEllis)\ **Post date:** [October 30, 2012, 9:15pm UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/8 "2012-10-30T21:15:13Z")
I have had many Dodge and Chryslers and have never had a problem with the transmissions. ---
**Author:** ![classicr](https://avatars.discourse-cdn.com/v4/letter/c/48db29/32.png) [@classicr](https://community.cartalk.com/u/classicr)\ **Post date:** [October 31, 2012, 2:14am UTC](https://community.cartalk.com/t/2005-dodge-magnum-r-t-transmission/75247/9 "2012-10-31T02:14:32Z")
I have only put 3000 miles on the car. Every thing that is “wrong” with it is inherited. I will get the trans done as soon as possible. I am not having any problems with the trans. Thanks all for your input.