$10 Million, Just for Motor Oil

The most advanced piece of technology in a NASCAR vehicle these days isn't its engine, its suspension or anything made of carbon fiber. It's the motor oil. Joe Gibbs Racing has spent about $1 million a year over the past decade to perfect its motor oil. As a result, its engines have squeezed out an extra 10 horsepower, a roughly 2% increase that can be a serious advantage in NASCAR races.

With NASCAR increasingly cracking down on the use of technology in the sport to cut costs, motor oil is one of the last places teams can innovate without restraint. Companies like Shell, Quaker State and Mobil also make special oils packed with synthetic lubricants, new polymers and experimental molecules for the teams they sponsor. All this has spawned a culture of secrecy. Shell was so worried about protecting its motor-oil formula that it recently refused to allow used race oil to be sold as a souvenir to NASCAR fans. The concern, a spokesman said, is that someone could "reverse engineer" the used oil to see what its properties are.

Joe Gibbs Racing, one of NASCAR's richest and most-successful teams, won't say which company assembles its synthetic oil and will only identify the scientists who work on its formula as "William the chemist," who's in charge of formulating the oil, and "Douglas," who used to work for NASA and is in charge of analyzing the team's worn engine parts under a microscope. "I don't want other teams trying to find out who these guys are," says Lake Speed Jr., who runs the team's oil program. Wall Street Journal