Car: 1999 Chevy Tahoe 5.3 V8
Mods
Excel Plus engine treatment
Magnetizer Fuel Line Magnets
Fuel Saver 5000
E3 Plugs
Nitrogen in Tires
VOLO performance chip HHO (not installed and not sure If I will)
The book says 11/14 for my car and I get 13/20. I need more on both ends more so on the city miles. I am going to be doing a lot more driving and I make 30% of what I used too. I have a couple of hundred dollars to spend. I want 20 for city miles. Is this possible? What can I do?