Thank you for your question regarding the proper fuel for your 2014 Jetta with the 1.8T engine! Although your Jetta will run on regular unleaded gas (87 AKI), we recommend using only premium with a minimum 91 AKI for optimal performance, fuel economy, and longevity of the 1.8-liter turbocharged engine. Using regular gas may cause undue wear on We can help you calculate and track your fuel economy. MPG Estimates from Others; 2019 Volkswagen Golf 4 cyl, 1.4 L, Manual 6-spd Regular Gasoline: Unit Amount; Gallons of gasoline Gasoline-powered passenger vehicles While passenger vehicles are not a unit of energy consumption, they do consume energy. For the calculator’s purposes, passenger vehicles are defined as 2-axle 4-tire vehicles, including passenger cars, vans, pickup trucks, and sport/utility vehicles. 2014 jetta 1.8t excessive oil consumption. My jetts is excessively burning though oil. No check engine light. The EPC light comes on when the oil is getting low. I always refill before the oil light ever comes on. No discoloration in the coolant. No oil on the ground at my parking spot. Fuel milage is sorta low. gyDMLC.