Quote Originally Posted by MetroAveo
is there a long-term difference in gas mileage when the DRLs are unplugged?
im trying to decide if this is serious or not. in th meantime i will answer it to the best of my knowledge. no you will more than likely not see any change in gas mileage. but you will see an increase in the life of your halogen bulbs seeing as how they will notalways be on and getting vary amounts of voltage all the time.