2012 Jeep Wrangler: No Use for the Green Zone
February 24, 2012
Tachometers have had red zones forever, but our Wrangler also has a green zone. As you can see, the green zone is nestled on the other side of the spectrum from the red zone. Looks to be from around 1,000 rpm up to 2,500 rpm.
It's a nice gesture and all I guess, but in all practical terms it's utterly useless.
For one, 1,000-2,500 rpm isn't exactly this engine's -- or any engine's -- sweet spot, so good luck trying to keep in the green zone. Second, do we really need a green zone to tell us that we'll get better mileage by running the engine at just over idle? I would hope not.
Ed Hellwig, Editor, Edmunds