I bought my 2007 G6 less than 2 months ago. The first time I filled it from 1/4 tank (on the fuel gauge) I found that I had a 15 gal tank.It took 13 gal to fill it (which proves that the gauges are never accurate). At that time I filled it for about $32.00. Last night I filled it when I hit 1/4 tank again (no, this is not the first time filling it since then [I wish])
Last night it was $54.00 to fill it. $3.93 - regular.
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