What is the difference between 1.8t and 1.8TD?
2 Answers
1.8t uses gasoline, while 1.8td is the diesel version. Turbocharger (Turbo) is abbreviated as T, and D is the abbreviation for diesel version. Turbocharging is more advanced than traditional turbocharged engines, preventing fuel splashing and being more fuel-efficient. Related introduction: 1. Turbocharging: It is a technology that uses the exhaust gas generated by the operation of an internal combustion engine to drive an air compressor. 2. Working principle: The engine exhaust gas inertia impulse is used to drive the turbine in the turbine chamber, the turbine drives the coaxial impeller, and the impeller compresses and delivers the air brought in by the air filter pipe, pressurizing it before entering the cylinder.
The core difference between 1.8T and 1.8TD lies in one being a gasoline engine and the other a diesel engine. The full name of 1.8T is 1.8-liter turbocharged gasoline engine, while 1.8TD refers to a 1.8-liter turbocharged diesel engine. The gasoline version relies on spark plugs for ignition, delivering smooth power output and quick acceleration response, but with relatively higher fuel consumption. The diesel version uses compression ignition, offering greater low-end torque and better fuel efficiency, making it suitable for hauling heavy loads. I've driven a Volkswagen 1.8T Passat, which starts lightly with low noise and is great for daily commuting. However, mechanics often say diesel engines are more rugged and durable, though noisier. Technically, turbocharging reduces engine size while boosting performance, but diesel engines require more complex maintenance, sometimes needing urea for emission treatment, which slightly increases costs. The choice depends on personal needs—I recommend the 1.8T for city commuting and the 1.8TD for hauling goods.
