New tires, terrible gas mileage
02-17-2016, 04:46 AM
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2005 Mercedes C230 Kompressor
New tires, terrible gas mileage
I purchased my 2005 with the same size tires all the way around and the gas mileage was superb. I was getting 32-36 MPG. Due to the rough ride, I purchased new Michelins and went with the standard size on the front and on the back. My gas mileage plummeted down to 22-24 MPG. I have also noticed longer shift times and higher RPM's. Suggestions?
Last edited by shanonpickard; 02-17-2016 at 04:52 AM.
02-17-2016, 12:04 PM
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2007 Mercedes E550
I purchased my 2005 with the same size tires all the way around and the gas mileage was superb. I was getting 32-36 MPG. Due to the rough ride, I purchased new Michelins and went with the standard size on the front and on the back. My gas mileage plummeted down to 22-24 MPG. I have also noticed longer shift times and higher RPM's. Suggestions?
02-17-2016, 01:59 PM
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Something else happened. Tires simply cannot make that much of a difference in fuel efficiency.
Tire size, pressure and tread pattern/style could account for maybe 2-5% change in mileage, but the OP is seeing a 30-35% change. It isn't the tires.
Tire size, pressure and tread pattern/style could account for maybe 2-5% change in mileage, but the OP is seeing a 30-35% change. It isn't the tires.
02-17-2016, 03:44 PM
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2005 Mercedes C230 Kompressor
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