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In 2014, BMW is introducing six new diesel vehicles to the North American market, including the 320d, the 5-Series diesel, and the X5d. The biggest challenge on the showroom floor will be fighting outdated bias against this highly efficient - and powerful - engine. 

Historically, “oil burners,” which are significantly more efficient than their gas-powered brothers and nearly as clean, have struggled to gain traction in the United States. Meanwhile, European markets, where the price of fuel is dramatically higher, have embraced them: diesel engines comprise more than half of vehicle sales overall. In fact, in some European markets BMW’s diesel sales are as high as 80%. So, as a new breed of diesel engines enters the market, what are America’s biggest misconceptions about this misunderstood fuel? 
 
Myth: Diesel is bad for the environment. 
The Truth: The diesel sold at filling stations in the US is not the same fuel sold in the 1980s, which were high in sulfur and, consequently emitted high levels of particulate matter and nitrogen oxides. Starting in model year 2007, the EPA required that cars in the US burn only ultra low sulfur diesel (ULSD), which is a whopping 97% lower in sulfur. The effect: ULSD engines have emissions on par with gas engines. 

Myth: Diesel engines stink 
The Truth: Diesel vehicles introduced in the US in the 1980s and ’90s were notorious for belching black smoke and stinking up the lane for the cars following them. However, a combination of the new ULSD fuel and more efficient drivetrains has eliminated that old familiar smell. 
 
Myth: Diesel engines are slow 
The Truth: A diesel engine burns fuel at a hotter temperatures and higher compression ratios than gas. This results in exceptionally high torque, which translates for the BMW driver into head-snapping acceleration off the line. 

Myth: Diesel engines are noisy 
The Truth: The new diesel engines and innovations in NVH technology have tuned out the chatter that consumers associate with a Mack truck. Sitting at idle - or any speed, for that matter - a diesel engine in any of the 2014 BMWs is impossible to distinguish from the gas engine.‚Äč 
- + Disclaimers