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post #1 of (permalink) Old 05-16-2017, 04:21 PM Thread Starter
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Transmission additive after fluid change

I have a 2015 with 30,000miles on should I add Lucas oil when I change the Tranny fluid ? am sure this information is here somewhere just can't seem to find anything.
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post #2 of (permalink) Old 05-16-2017, 06:23 PM
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When are you planing to change the fluid? Normal usage is around 100,000 miles.

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post #3 of (permalink) Old 05-16-2017, 10:31 PM Thread Starter
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From my understanding you can't change the filter on the 9th gen trans so fluid should be changed at 30,000 may or may not be true certainly want to prevent trouble. thinking Lucas oil may be good thing to add.
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post #4 of (permalink) Old 05-17-2017, 03:56 AM
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Originally Posted by jbmann View Post
I have a 2015 with 30,000miles on should I add Lucas oil when I change the Tranny fluid ? am sure this information is here somewhere just can't seem to find anything.

Read your vehicle owner's manual.

GM does NOT recommend any additives with the transmission fluid and considers transmission additives to be contaminants.
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post #5 of (permalink) Old 05-17-2017, 05:24 AM
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Originally Posted by jbmann View Post
I have a 2015 with 30,000miles on should I add Lucas oil when I change the Tranny fluid ? am sure this information is here somewhere just can't seem to find anything.
.02 advice. Never stick anything in your ear smaller than your finger or any fluid in the tranny other than what is listed in the owner's manual.
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post #6 of (permalink) Old 05-18-2017, 08:40 AM
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The transmission system is closed and it's not recommended to be changed until after 100k
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post #7 of (permalink) Old 05-18-2017, 12:25 PM Thread Starter
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As it turns out the dealer wants 249.00 to change fluid. They also add a conditioner I didn't ask what kind for the price of maybe 6 quarts of fluid I will change it now than again at 60,000 I know I did read somewhere 30,000 change was a good thing to do. Thanks all.
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