Mercedes-Benz M270/M274 engine. The M270 and M274 are turbocharged inline-four engines produced by Mercedes-Benz since 2011. They are the successor to the previous M266 and M271 engines respectively. The engine appeared on the Ward's 10 Best Engines list for 2017.
What is the fuel economy, Mercedes-Benz 190 (W201) E 2.3-16 (185 Hp)? 7.9 l/100 km 29.77 US mpg 35.76 UK mpg 12.66 km/l:
4803 posts · Joined 2002. #11 · Feb 25, 2008. The compression ratio in the 1.8L is 9.1:1, so yes, you'll need to use 91 or better octane fuel. As for using higher than need octane fuels, such as triple digit or unleaded "race fuel" . . . octane does not equal HP, torque, clean engines or better fuel economy, so you'll only be helping out the
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mercedes 190e 2.0 fuel consumption