# Automatic Transmission

**URL:** <https://community.cartalk.com/t/automatic-transmission/39339>\
**Category:** Maintenance/Repairs\
**Tags:** lesabre, transmissions, oil, buick\
**Created:** [November 11, 2009, 4:28pm UTC](https://community.cartalk.com/t/automatic-transmission/39339 "2009-11-11T16:28:49Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![kijrichva](https://avatars.discourse-cdn.com/v4/letter/k/b5ac83/32.png) [@kijrichva](https://community.cartalk.com/u/kijrichva)\
**Post date:** [November 11, 2009, 4:28pm UTC](https://community.cartalk.com/t/automatic-transmission/39339/1 "2009-11-11T16:28:49Z")

</div>

I own a 2000 Buick LeSabre with over 110000 miles. Recently it has developed minor shift problems. My mechanic changed the transmission oil and added a additive which he says will clean the valve body. It is working better since he did this (about 2 months).  
  
  
  
 I have used Marvel Mystery Oil in both the crankcase and gas tank with apparently no ill effects. Can it be used at all in the transmission?

---

<div class="post-metadata">

**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [November 11, 2009, 4:36pm UTC](https://community.cartalk.com/t/automatic-transmission/39339/2 "2009-11-11T16:36:02Z")

</div>

NOPE!

---

<div class="post-metadata">

**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 11, 2009, 4:56pm UTC](https://community.cartalk.com/t/automatic-transmission/39339/3 "2009-11-11T16:56:03Z")

</div>

I wouldn’t put anything other than automatic transmission fluid in an automatic transmission.

---

<div class="post-metadata">

**Author:** ![transman618](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/transman618/32/24_2.png) [@transman618](https://community.cartalk.com/u/transman618)\
**Post date:** [November 11, 2009, 11:37pm UTC](https://community.cartalk.com/t/automatic-transmission/39339/4 "2009-11-11T23:37:07Z")

</div>

I wouldnt use Marvel. If you want to use an additive, use Lube-Gard, the one in the RED bottle.

What kind of shifting problems are you having??

transman