The 1978 Datsun 280Z came equipped from the factory with a fuel-injected, 2.8-liter, inline six-cylinder engine and either a five-speed manual or four-speed automatic transmission. Fuel efficiency was admirable when compared with other sports cars of this time period.
When equipped with the standard five-speed manual transmission, the 280Z earned EPA-estimated fuel efficiency ratings of 18 city, 27 highway and 21 combined mpg.
Four-speed automatic transmission-equipped versions of the 1978 280Z attained EPA-estimated fuel efficiency ratings of 17 city, 23 highway and 19 combined.
The fuel-injected 280Z needs clean fuel injectors to maintain optimal fuel efficiency, as well as clean oil, air and fuel filters. Make sure the tires are inflated to the recommended pressure. In classic cars such as the 280Z, performing a compression check is a great preliminary way to see if engine overhauling is necessary to achieve optimal performance and fuel efficiency.
