Reviewed By Sean J (Belle Chasse, LA) Reviewed for a 2005 Cadillac Escalade —9/2/2013 8:14 AM
I was a bit skeptical of this tuner, since a lot of them have huge promises, but I got a great price on it through AutoAnything and bought it. I have an Escalade with a 6.0 V-8 and RWD that usually gets 17.4 MPG on the highway at best on our road trips. I got as high as 18.9 and even through a 3,800 miles road trip driving on the highway, city traffic and up hills and mountains, it still averaged 17.3! The cost savings of using 87 octane plus getting better fuel economy were well worth it!