Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 2-3mpg with K&N air filter and aftermarket muffler?

jazclrint · 12-10-2021, 12:13 AM

Hello all. I have a 2012 Cadilac Escalade Hybrid. For its age and mileage, it's running pretty well and getting decent fuel mileage. But I'd like more, of course. I have aftermarket wheels, not by choice, but they are stronger as we tow with this truck. My wife's commute is 7 miles one way and the stupid road she drives is mostly 45mph with maybe a dozen stoplights from here to there. I can take the truck on a loop through town then onto the interstate and back through town and average 21-22mpg. She's getting about 17mpg on this commute. One GM SUV hybrid owner has suggested that if I put a K&N filter and an Aftermarket muffler on it I could get 2-3mpg better. My mechanic brother says no, you'd need a cold air intake kit and full exhaust.

What do you guys think?

Thank you for your time.

12-10-2021, 12:13 AM	#1 (permalink)
jazclrint EcoModding Lurker Join Date: Feb 2021 Location: Florida Posts: 12 Thanks: 8 Thanked 2 Times in 2 Posts	2-3mpg with K&N air filter and aftermarket muffler? Hello all. I have a 2012 Cadilac Escalade Hybrid. For its age and mileage, it's running pretty well and getting decent fuel mileage. But I'd like more, of course. I have aftermarket wheels, not by choice, but they are stronger as we tow with this truck. My wife's commute is 7 miles one way and the stupid road she drives is mostly 45mph with maybe a dozen stoplights from here to there. I can take the truck on a loop through town then onto the interstate and back through town and average 21-22mpg. She's getting about 17mpg on this commute. One GM SUV hybrid owner has suggested that if I put a K&N filter and an Aftermarket muffler on it I could get 2-3mpg better. My mechanic brother says no, you'd need a cold air intake kit and full exhaust. What do you guys think? Thank you for your time.