tuneman Posted May 23, 2004 Report Share Posted May 23, 2004 I need some advice from you caddy experts. I have a 96 sedan deville which runs strong. I want to upgrade performance and get some better gas mileage because 200+ mi trips happen frequently. The car is stock, the first thing I want to do is change the exhaust and do so fairly cheaply. Is the Super Turbo the best way to go for this? What about the chip... Most consider it unprogramable. Could a Concours chip replace the stock one? Is it reprogramable? Would lighter wheels make much of a difference? Is there any economical way to improve air in without making the check engine light come on? Looking for a little help from some of you better versed in NS performance. Also, family has a 98 deville which seems to handle much better- why is this so? Is there any economical way to stiffen things up a bit? Thanks guys; Caddy Jack Link to comment Share on other sites More sharing options...
K2K Posted May 23, 2004 Report Share Posted May 23, 2004 If you want to up gas mileage, then the performance mods that most people use might not be down your alley. Super Turbos generally lower gas mileage. Link to comment Share on other sites More sharing options...
Bruce Nunnally Posted May 23, 2004 Report Share Posted May 23, 2004 A free flowing exhaust in itself can improve gas mileage; however it can also cause the driver to accelerate in a rush more frequently, which can cause a drop in mpg. Bruce 2016 Cadillac ATS-V gray/black Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
Ed Hall Posted May 23, 2004 Report Share Posted May 23, 2004 Skinny high profile tires have less rolling resistance and increase mileage. If I keep my speed under 75 I can get 29-30 mpg. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.