By Kang Seung-woo
Staff reporter

SK Telecom, the flagship of SK Group and No. 1 wireless mobile carrier, is leading the industry on the strength of its various service offerings.

And SK Energy is taking a similar step or maybe even a bigger one for its customers, as it provides a solid marketing strategy nearly equivalent to that of its sister company.

SK EnClean means "Engine Clean, Environment Clean. Energy Clean is a gasoline brand of SK Energy.

Since its introduction in 1995, EnClean gasoline, with its unique engine-cleaning additive, uses superior-grade products with strict quality controls that surpass legal requirements.

It also introduced a cutting-edge purifier in 2006 to meet consumers' demands for high quality.

In addition, the brand took a leading role in launching a membership system, introducing the EnClean bonus card in 1996.

SK Energy, the nation's No. 1 refiner, upgraded the drivers' desire for premium gasoline, coming up with "Solux," a compound word of solution and luxury.

The premium brand, released in 2005, is an environment-friendly and high-grade gasoline.

Customers, who spend a certain amount of money on refueling, can apply for a Solux membership card that offers services to the holde.

EnClean movie plus is a cultural event, which was introduced in June 2008.

It awards customers two movie tickets and a beverage-popcorn set.

Along with the movie event, SK Energy plans to develop family-oriented cultural marketing, which will include promotions for travel, parties, shows and exhibitions.

SK Energy has run a program to guarantee the quality of gasoline since May 2007 in its bid to gain trust from consumers.

If a car happens to have a problem after being refueled at any EnClean gas station, SK Energy will compensate the owner, following an investigation.

The number of EnClean customers has reached approximately 1.5 million and SK Energy opened its website in early 2008 to give services ranging from vehicular to financial information, including insurance and leases at www.enclean.com.

Currently, the website is nearing 9 million members.