We want to maintain a good transmission. We are trying to figure it if we should change the transmission fluid twice; with the filter first time and change one week later. What do you suggest?

Asked by Aug 20, 2012 at 03:33 AM about the 1999 Chrysler 300M 4 Dr STD Sedan

Question type: Maintenance & Repair

Which type of tranny fluid should we request and/or use?  This car has 136,500 miles.  

6 Answers


Has the fluid ever been changed? A dual dump and fill is a fine option IMO. Some will suggest a flush which I don't like to do, as it might cause more issues.

1 of 1 people found this helpful.

Thank you so much Tom. How do we know when we should do that? Not sure how to tell when it's time.


your owner's manual will tell you the intervals- usually from 30k to 50k miles between changes between manufacturers (GM is 50k for example). If the fluid is not pinkish red, just change it and the filter and start out fresh and keep track from now forward. Do not do a flush unless they know what they are doing or you can cause more harm than help.

1 of 1 people found this helpful.

What if the fluid is pinkish red?


then it should be good- if it was not good, it would have a brownish tinge and smell burnt.

1 of 1 people found this helpful.

A very good indicator of transmission condition is the following test. It has to have been a substantially long time since you wiped down the tranny dip stick for this to work. Get the engine/tranny up to temp and let sit till just warm. Then take a pure white cloth,pull the dipstick and wipe it down with the cloth. You will see some pink and most likely some blackish brown residue on the cloth. If you have a significant amount of black debris come from the stick it tells you there is much wear in tranny. The black material wear from the internal parts in the tranny. I do this test every time before I buy a vehicle.

1 of 1 people found this helpful.

Your Answer


Looking for a Used 300M in your area?

CarGurus has 150 nationwide 300M listings and the tools to find you a great deal.


Chrysler 300M Experts

  • #1
    Jearod Leet
  • #2
    Felix Melendez
  • #3
View All

Related Models For Sale

Used Ford Mustang
290 Great Deals out of 38,338 listings starting at $1,995
Used Chevrolet Impala
362 Great Deals out of 27,073 listings starting at $1,000
Used Jeep Grand Cherokee
788 Great Deals out of 73,468 listings starting at $500
Used Chevrolet Camaro
244 Great Deals out of 29,837 listings starting at $4,980
Used Honda Accord
539 Great Deals out of 93,217 listings starting at $1,495
Used Chevrolet Tahoe
625 Great Deals out of 37,217 listings starting at $795
Used Nissan Maxima
242 Great Deals out of 17,874 listings starting at $1,995
Used Ford F-150
2,494 Great Deals out of 220,170 listings starting at $1,222
Used Dodge Durango
222 Great Deals out of 24,377 listings starting at $1,500
Used BMW 5 Series
377 Great Deals out of 16,049 listings starting at $1,650

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.