History

• Cadillac is the oldest of GM's brands, founded in 1902. Throughout the years the automaker has produced mostly large, luxurious vehicles with the CTS representing the smallest Cadillac currently available.
  
  

CTS

• The Cadillac CTS is the fourth in a series of smaller Cadillacs produced, beginning with the Seville in the 1970s, the Cimarron in the 1980s and the Catera in the 1990s.
  
  

Fuel

• According to Business Week, "...the CTS uses [the more] inexpensive regular gasoline, while its rivals all require premium fuel."
  
  

Exception

• Cadillac builds a special CTS-V model equipped with a supercharger. That 6.2L, 556-horsepower V8 is paired with either a six-speed automatic or six-speed manual transmission. According to GM, the Cadillac CTS-V requires premium fuel.
  
  

Owner's Manual

• If you're not sure which CTS model you own, check your owner's manual for fuel information. If the manual says a certain fuel is required, be sure to follow what's suggested in order to preserve your warranty.