M Mike New member Dec 1, 2009 #1 2004 RX8, any way to increase how many MPG I get? Will a cold air intake increase MPG? Can these engines use Ethanol? Or just premium/super gasoline? Thanks
2004 RX8, any way to increase how many MPG I get? Will a cold air intake increase MPG? Can these engines use Ethanol? Or just premium/super gasoline? Thanks
