M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Gas mileage help! ML350 W164

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Old 01-08-2021 | 02:31 AM
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jtk512's Avatar
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2008 Mercedes ML350 W164
Gas mileage help! ML350 W164

Hi guys! New Mercedes owner and I also don't know much about maintaining cars. When I look up the fuel economy, it should be 18 city and 24 highway. Well on my trip today, I did 442 miles, and filled up 28ish gallons. Which equals to 15ish mpg. Does anyone know why it's drinking gas like this?

2008 Mercedes ML350
VIN: 4JGBB86E78A401986
About 154k miles on the car.
Tires 33 in front, 38 in back


Old 01-08-2021 | 04:44 AM
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Maj. Dundee's Avatar
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
They are adding ETHANOL.

https://www.motorbiscuit.com/why-is-...-added-to-gas/
Old 01-11-2021 | 12:27 PM
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k31ron's Avatar
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2011 ML350
Originally Posted by jtk512
Hi guys! New Mercedes owner and I also don't know much about maintaining cars. When I look up the fuel economy, it should be 18 city and 24 highway. Well on my trip today, I did 442 miles, and filled up 28ish gallons. Which equals to 15ish mpg. Does anyone know why it's drinking gas like this?

2008 Mercedes ML350
VIN: 4JGBB86E78A401986
About 154k miles on the car.
Tires 33 in front, 38 in back
24 Highway would be nice :-) max I ever see is 20 on long highway journeys

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