# Transmission additive **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [November 22, 2007, 3:35am UTC](https://community.cartalk.com/t/transmission-additive/7550 "2007-11-22T03:35:25Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Kraus16](https://avatars.discourse-cdn.com/v4/letter/k/da6949/32.png) [@Kraus16](https://community.cartalk.com/u/Kraus16)\ **Post date:** [November 22, 2007, 3:35am UTC](https://community.cartalk.com/t/transmission-additive/7550/1 "2007-11-22T03:35:25Z")
Is there a good additive for a slipping transmission? ---
**Author:** ![ok4450](https://avatars.discourse-cdn.com/v4/letter/o/e9bcb4/32.png) [@ok4450](https://community.cartalk.com/u/ok4450)\ **Post date:** [November 22, 2007, 4:59am UTC](https://community.cartalk.com/t/transmission-additive/7550/2 "2007-11-22T04:59:50Z")
Not in my humble opinion. That opinion might vary a microscopic bit, maybe, if I knew the type of car, mileage, if the fluid is low or darkened, how long the trans has been slipping, when or if the trans fluid was last changed, if it’s an older vehicle with an out of adjustment TV cable, or what station the radio is currently on. You’ve provided no info at all on the car. ---
**Author:** ![pleasedodgevan](https://avatars.discourse-cdn.com/v4/letter/p/51bf81/32.png) [@pleasedodgevan](https://community.cartalk.com/u/pleasedodgevan)\ **Post date:** [November 22, 2007, 5:39am UTC](https://community.cartalk.com/t/transmission-additive/7550/3 "2007-11-22T05:39:47Z")
Don’t try one unless someone here has tried it first. Usually there aren’t any good random choices. If the transmission is already slipping, don’t even bother to change the fluid or it will get worse… ---
**Author:** ![andrew\_j](https://avatars.discourse-cdn.com/v4/letter/a/91b2a8/32.png) [@andrew\_j](https://community.cartalk.com/u/andrew_j)\ **Post date:** [November 22, 2007, 11:59am UTC](https://community.cartalk.com/t/transmission-additive/7550/4 "2007-11-22T11:59:46Z")
Holy water. ---
**Author:** ![bscar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bscar/32/34_2.png) [@bscar](https://community.cartalk.com/u/bscar)\ **Post date:** [November 22, 2007, 1:34pm UTC](https://community.cartalk.com/t/transmission-additive/7550/5 "2007-11-22T13:34:04Z")
A good additive would be fresh transmission fluid. When was the last time you had it changed? ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [November 22, 2007, 2:01pm UTC](https://community.cartalk.com/t/transmission-additive/7550/6 "2007-11-22T14:01:46Z")
I’ve had some success with K&W TRANS-X. But don’t consider this as a permanent fix. It might get a few more miles out the transmission before it needs to be replaced. Tester ---
**Author:** ![Kraus16](https://avatars.discourse-cdn.com/v4/letter/k/da6949/32.png) [@Kraus16](https://community.cartalk.com/u/Kraus16)\ **Post date:** [November 24, 2007, 11:18pm UTC](https://community.cartalk.com/t/transmission-additive/7550/7 "2007-11-24T23:18:39Z")
1999 Taurus, 110K, oil level good,auto trans, slipping past 3-5k ---
**Author:** ![mcparadise](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mcparadise/32/32_2.png) [@mcparadise](https://community.cartalk.com/u/mcparadise)\ **Post date:** [November 24, 2007, 11:24pm UTC](https://community.cartalk.com/t/transmission-additive/7550/8 "2007-11-24T23:24:11Z")
NO! There are no additives that can fix a mechanical problem. ---
**Author:** ![Docnick](https://avatars.discourse-cdn.com/v4/letter/d/ecae2f/32.png) [@Docnick](https://community.cartalk.com/u/Docnick)\ **Post date:** [November 24, 2007, 11:38pm UTC](https://community.cartalk.com/t/transmission-additive/7550/9 "2007-11-24T23:38:42Z")
Agree, a slipping transmission should be fixed. A friend last month asked me the same question,in connection with a Mazda 626. I referred him to a reputable shop.