I don't have any first-hand knowledge about newer vehicles. My truck is a 1990 with a 350 tbi engine and when I bough it, it gave me terrible gas mileage (12 city, 15 hwy). I now get 16 city and a steady 18 to
20 on the highway. The cruise doesn't work and it is a high-mileage truck.
I do all the normal things (tune-ups, tire pressure, etc.) and I also added a spacer under the tbi tower (lifts the injectors out of the bore and allows more air flow) plus one under the tbi unit itself (this one has the area between the bores almost completely cut away. I also ran a ground wire directly from the battery to the external coil. I cleaned all my electrical connections (used an eraser to avoid damaging the copper/brass connectors) and used copper conductive paste on all the ground connections that I could. I don't know if any of this can help you but I'll throw it yor way just in case.
Group: alt.trucks.chevy Date: Mon, May 1, 2006, 8:34pm From: snipped-for-privacy@hotmail.com (Marc) Thanks to all of you for your responses. I know I was fishing for an easy solution and that these things dont work, I was kinda hoping to hear that such a gadget works but hey, thats life. Rich, I'm driving a 2005 Sierra Crew Cab 4x4 with the 5.3l engine and
3.73 gears. I've been averaging about 15-18 mpg (using the cdn gallon) or 12-14mpg (us gal.) driving half city half hwy. The best I have gotten hwy was 21mpg(cdn)/17.5mpg(us), hence the reason I was asking this question. I have always had very serious reserves about such gadets but this vendor was convincing. The promise of a minimum of 15% savings and maybe upto 35% is very temping. Thanks again. Marc
"Angie" a =E9crit dans le message de news: eJw5g.8809$ snipped-for-privacy@news01.roc.ny... My local news did a story on this a couple days ago, and said it was all false promises. As they said, it if was true, and could really prove to be a savings to you-- everyone would be using it.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% "Sometimes, when you're up to your butt in alligators, it's hard to remember that the intial objective was to drain the swamp." ~ Unknown ~