2013 Cadillac ATS Long-Term Road Test

2013 Cadillac ATS: Fuel Economy Update for July

August 2, 2013

2013 Cadillac ATS

In July, our 2013 Cadillac ATS returned to service after a two-week stay in the body shop. We responded with 2,100 miles, an oil change and a tire rotation. Editor Travis put half of those miles on the ATS during a road trip to Nevada City, while Editor Brent contributed his share through two weeks of combing Central California roads.

We achieved our best range (433 miles) and best MPG of the long-term test this month, with a 30.6 mpg average. On one hand, that's a pretty impressive number, compared against the ATS's EPA rating of 24 mpg in combined driving. On the other hand, most of the miles on that particular tank were open highway miles and not so impressive judged against the EPA rating of 31 highway mpg.

In fact, our ATS has been something of an underachiever, throughout the long-term test. We're averaging just 21.6 mpg in mixed driving, or about 2.5 mpg less than the EPA rating. While we understand that EPA ratings are often fanciful and idealistic, others actually buying the ATS perhaps won't be so forgiving.

Worst Fill MPG: 14.8
Best Fill MPG: 30.6
Average Lifetime MPG: 21.6
EPA MPG Rating: 24 Combined (21 City/31 Highway)
Best Range: 432.9 miles
Current Odometer: 11,733

Dan Frio, Automotive Editor

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Edmunds Insurance Estimator

The Edmunds TCO® estimated monthly insurance payment for a 2013 Cadillac ATS in WA is:

$199 per month*
* Explanation