They said they carefully planned the route, traveling from Houston to Jacksonville, Fla., and then to Virginia using interstate highways over three days. They tried to keep the car in sixth gear when possible.
Also, they said they drove about 5 miles per hour below the speed limit in the Passat TDI featuring a 2.0-liter four cylinder engine running on ultra-low sulfur diesel fuel.
“We’d sit on 60,” John Taylor said. “Reducing speed saved 23 percent in fuel.”
They also said they kept the car’s tire pressure at the proper mark, drove smoothly and consistently and idled as little as possible. They only used air conditioning on two occasions.
The couple added that they carried 120 pounds of luggage and drove during the daylight hours and didn’t travel more than 14 hours a day.
Pretty impressive for a stock Passat TDI.
BTW, based on the Passat's 18.5 gallon tank that equates to over 87 mpg.