2005 lacrosse 3.6 rpms .

[mark78]

How many rpms should my 3.6 be turning at 60 mph ?

 

[DocBrown]

You posted in the Encore forum.

The short answer is the same with any car. It depends on conditions.

 

[MelsRegal]

assuming the stock tire diameter of 26.62", final drive ratio of 2.86, transmission in OD at .71, speed 60 mph, the rpm is 1,538.

 

[mark78]

yes I have stock tires and on a none windy day , flat road I am tacking 2,0000 rpms at 60 mph .

 

[MelsRegal]

So you are saying you have 225/60x16 tires?
You could have a different final drive.
How long have you had the car and is this a something that has not occurred before?
Do you have a check engine light on?
The transmission may not be going into overdrive or the torque converter is not locking.

 

[mark78]

So you are saying you have 225/60x16 tires?
You could have a different final drive.
How long have you had the car and is this a something that has not occurred before?
Do you have a check engine light on?
The transmission may not be going into overdrive or the torque converter is not locking.

yes that is the same size I have on my car . no engine light or anything out of the norm .