LPG outboard engines have become a strong marine propulsion alternative in protected lakes and rivers, as well as in fish farms.
Two-stroke, gasoline engines are the predominant form of propulsion. Without effective after-treatment systems, the exhaust fumes are very polluting, especially due to the unburnt fuel from the exhaust, not to mention also the spillages encountered when refuelling. These have detrimental effect on the water and aquatic wildlife.
Emission benefits stand as the primary driver behind the use of LPG-fueled engines but there are also noteworthy cost benefits.
The restrictions on the use of internal combustion engines on many protected areas leave LPG fueled outboard engines as the prime alternative for boat users.