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					Originally Posted by OldBlevins
					
				 Amen to checking it with a refill.  On the highway, I get 26 - 29 mpg, but the first quarter of a tank the gauge drops like a buick pushed off a cliff.  It was a little alarming to me till I figured out it was just the gauge.  Dunno if that's typical of the Boxsters.... | 
	
 
Same with mine.  It never quite hits the full mark, and it's down to 3/4 before you can say "New rear tires, please".   
 
 
The trip from there to 1/4 is much slower.