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2006 RSX Type-S Bad MPG

1955 Views 16 Replies 11 Participants Last post by  G3min1
In my 06 Type-S I’m hitting the gas light at around 220 miles on a full tank while driving economically. I’m posting the list of mods I have on the car that I think would affect MPG and I just wanted your guy’s input on why it might be so crappy. My assumption is that it’s my AEM Short Ram Intake but I’m not sure. Swapped out the spark plugs as well recently.

AEM Short Ram Intake
Injen Exhaust System
CE28 17” Wheels
235/45R17 Tires
Stock ECU
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Mileage sounds about right, I just dropped an 85K motor in mine and I am getting about 22mpg. I do need to look at the fuel trim as I do expect about 24-26
Finally got to do some highway driving, two tanks ago -27mpg! Last tank 24.5 almost 25mpg @ 85-90mph average speed.

Current tank is on track for 26-27mpg also.
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