It’s estimated that about 70-80% of the outboard engines sold are 4 stroke engines, and much of the reason is due to a common misconception about 2 stroke engines. In the past, 2 stroke engines suffered from terrible fuel economy and were known for spewing exhaust and pollution. However, in the last decade, that traditional 2 stroke engine archetype has changed… a lot. Most of the old 2 stroke engines that were oversized gas guzzlers have been replaced with direct injected and fuel injected 2 stroke engines. These new engines are state of the art, and conserve fuel while offering great power.
While 2 stroke engines were worse off in several categories when compared to 4 stroke engines, there is one area in which the 2 stroke engine excelled. 2 stroke engines are more reliable than 4 stroke engines due to their more simplistic design. Owners who tend to their 2 stroke engine with proper care will have an engine that can last for a long time. The new 2 stroke engines are just as reliable as their older counterparts. The new direct injected and fuel injected 2 stroke engines use a metered stream of 2 stroke oil to lubricate all the rings and bearings, ensuring the engine remains in top condition while improving fuel economy. This innovation makes the 2 stroke the sheer winner over the 4 stroke engine.