Hyundai Mu engine

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This is a variant of the 2.7 Liter Delta V6 .

The Mu Engine in Kia's Rondo is Engine Code G6BA and is more like Delta, While the Optima's has several more (24) variations of the Rondo's Mu (Which has 7 variations from Delta, adding 9 hp). The Optima's Mu Engine Code is G6A5, and even though it has 24 variations of the Rondo, it only adds 3 hp (2.2 kW), but burns slightly less fuel and there is less vibration (which because of its size, is hidden in Rondo) and it has a 100 rpm lower idle speed. The Mu engine used in the Optima is the same one used in the Hundai Santa Fe.

It is rated 185 hp (138 kW) @ 6,000 rpm, and 182 ft·lbf (247 N·m). @ 4,000 rpm.

It is a 60-degree 6-cylinder, with aluminum block and aluminum heads.

It still features DOHC with 4 valves per cylinder, and Multi-Port Fuel Injection.

Now it features CVVT and VLM Variable length intake runners.

Released in the 2006.5/2007 (Third Generation) Kia Optima, the 2007 Kia Rondo, and the 2007 (Second Generation) Hyundai Santa Fe.

Source: Kia Motors America, Hyundai Motors Worldwide