Reviewed By Alex U (Ewing, NJ) Reviewed for a 2007 Jeep Grand Cherokee —11/14/2015 7:58 AM
Reviewed By Andrew T (Winchester, VA) Reviewed for a 2007 Jeep Grand Cherokee —2/22/2011 6:14 AM
The installation is a little bit tricky toward the end in which improvisation had to be addressed due to the placement of a hose. I've noticed a 2 MPG increase in city and a 3 MPG on highway increase pending driving style. Getting 21.3MPG with a V8 Jeep is a great accomplishment. Also the vehicle downshifts less often when on a steep climb also resulting in better economy.
Reviewed By Arthur G (Fort Collins, CO) Reviewed for a 2007 Jeep Grand Cherokee —5/22/2010 5:44 AM
I got more than 2 miles per gallon on the highway. In the city I believe I actually got more fuel economy. I have the MDS on my 5.7 hemi where it drops to 4 cyl when its under about 2200 rpm. The trip computer said I was getting 26 mph when it usually reads 14 mph! Highly recommended. I can't believe I waited so long to make this purchase. I was also able to get rid of all that useless plastic under the hood. Great product.