Transmission on 08 Pontiac Grand Prix 3.8 engine

Asked by GuruWNC3 Mar 31, 2017 at 08:37 PM about the 2008 Pontiac Grand Prix Base

Question type: General

What temperature is my transmission fluid
supposed to be

2 Answers

189,445

The max that any tranny fluid should be is 233, your car about 200 is good...

4 people found this helpful.

180 degrees or lower is ideal for the longest transmission life. If you are running into the 200's I would install a bigger transmission cooler.

3 people found this helpful.

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