Update.. just did the fill up today... 30.36mpg.

12.979 gal and costed $49.05 @ $3.77/gal

Drove 393.7 miles.
My tank capacity is around 17gal. Think I can do 500 miles if I wanted to.

But just to stay safe it's better not to push it.
Luckily I live close to the city and almost sure that there is a gas station every 15miles. One time I went to the country side with my car. Low gas warning light was on and couldn't spot a gas station for about 50miles. I was so relieve to pull into the gas station only to find it has been close for business many years ago. I was turning red and my heart was beating. Had to drove another 50 miles to find the next station. I know my car can go about 70miles after the light but 100miles was very pushing it.
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My car currently average at 28.79mpg Camry SE V6 '07 All OEM parts...
My best this year is at 32.65mpg so far. Best in 2007 is 31.77mpg. And finally best in 2006 is 30.60mpg.
Lowest to date is 21.91mpg... it's a V6 3.5L.. it can really suck.
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Best TN Mileage!
TTM77 - 28.79Mpg Camry Se V6 '07 All OEM parts...