Pleasure Marine Model Yanmar’s marine diesel engines are in compliance with global emissions standards. Diesel engines emit less CO2
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With a thermal efficiency of over 40%, diesel engines compare favorably to gasoline and  can go a long way towards reducing the impact of engines on the environment. Unfortunately, diesel engines are also known for the exhaust they emit, which contains levels of particulate matter (PM) and nitrous oxides (NOx) that can contribute to air pollution. From the late 1990s, regulations on marine diesel exhaust emissions have been implemented and strengthened in countries all over the world. Yanmar has been active in conducting research towards clean emissions for diesel engines and early on cleared the strict US EPA (US Environmental Protection Agency) regulations as well as regulations from many other countries.

Due to its higher combustion efficiency, a diesel engine will emit 20-40% less of the greenhouse gas CO2 than an equivalent gasoline engine, a significant reduction. In environmentally conscious Europe, diesel has captured more than 50% of the passenger vehicle market. Diesel use is increasing in the US and other regions too, and, with a focus on diesel as an environmentally friendly technology, this trend is set to continue. In the maritime sector, the emissions standards from the US EPA mandate stricter restrictions on diesel engines than on gasoline outboard engines.

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SAILING & SMALL CRAFT ENGINES

3JH40

MHP: 40
RPM: 3000
DISP: 1.64 L

4JHCR

4JH-CR SERIES

MHP: 45-110
RPM: 3200-3800
DISP: 2.0-2.19 L

4LV SERIES

MHP: 150-195
RPM: 3200-3500
DISP: 2.7 L

POWER BOAT PROPULSION ENGINES

4LV – SERIES

MHP: 150-250
RPM: 3200-3800
DISP: 2.7 L

8lv

8LV – SERIES

MHP: 320-370
RPM: 3800
DISP: 4.460 L

6LY

6LY -CR SERIES

MHP: 400-440
RPM: 3300
DISP: 5.813 L