What's up guys, just recently ran a check to see how far I could possibly go on a complete full tank of gas. My recent as of today was 428.2 miles on a tank. I'll post the photo I took before I actually put gas into it. The gas light was yet to come on. Most miles were on highway, and only a few in the city.

Mods:
3" intake w/ Short Spectre filter
OBX Header/down pipe
O2 Spacers (Simulators)
Deleted Cat, and Resonator (Sounds deep)

 

I get about 318 to the gas light comes up. 80% street driving. GS300

 

From fill up to fill up I'm getting 335-375. All depends on how heavy my foot is and if I get on the highway any.

Anything special you are doing to get 428 mile a tank?

 

I do about 60 miles in city, and rest on highway cruising 77, 76 mph at about 2,900-3,000 rpm's. I use Lucas fuel clean after about 3-4 fill ups. I also don't use the ethanol mix gas when filling up. I use pure 93 gasoline it's stil available in some areas people haven't looked, or thought of it. Also I deleted cat, and resonator. I over use cruise control to lol