Transmission on 08 Pontiac Grand Prix 3.8 engine

Asked by 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

108,055

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

74,375

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.

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