
1.8L and 1.8T engines differ primarily in that one is a naturally aspirated engine while the other is a turbocharged engine. Below is an introduction to the td technology in cars: 1. 1.8td in cars: 1.8td refers to turbocharged direct injection technology, where T stands for turbocharging and D represents direct injection. 2. Function of turbocharging: The main purpose of turbocharging is to increase the engine's air intake, thereby enhancing the engine's power and torque, resulting in greater horsepower for the car. When a turbocharger is installed on an engine, its maximum power can increase by 40% or even more compared to when it is not equipped with a turbocharger. The same engine can output greater power after turbocharging technology is applied. On one level, turbocharging can improve fuel economy and reduce exhaust emissions.

I've driven quite a few cars and found the main difference between the 1.8t and 1.8td lies in the engine type. The 1.8t is a gasoline turbocharged engine, offering quick response during acceleration and smooth performance at high RPMs, making it thrilling for high-speed overtaking. However, its fuel consumption is higher, and stop-and-go city driving can be costly. The 1.8td is a diesel turbocharged engine, delivering strong torque at low speeds, making it effortless when hauling loads or climbing hills. Diesel offers better cost efficiency, allowing longer distances per tank. However, vibrations and noise are noticeably greater, especially when starting at traffic lights, and winter preheating is slower, affecting comfort. Choose the gasoline version for spirited driving, and consider the diesel version for economy and durability.

From a cost-saving perspective, the 1.8TD diesel engine can indeed save on fuel costs. Diesel prices are lower, and you can travel more kilometers per liter, making it quite economical for long-distance driving. However, the initial purchase price might be higher, and maintenance is more complex—for example, repairs for the turbo system or emission control can be expensive. As for the 1.8T gasoline version, it requires quicker cash flow when refueling, but maintenance is simpler and less hassle, making it suitable for small families on a tight budget. Over the long term, you need to calculate the total cost carefully—don't just focus on short-term savings.

For daily commuting, I prefer the 1.8T gasoline version. It's quiet and smooth in the city, with silky acceleration and minimal engine noise that doesn't affect my mood. The 1.8TD diesel version has noticeable vibrations, makes a rattling sound when idling, takes forever to warm up, and causes ear discomfort during long drives. The gasoline model is perfect for short errands - hassle-free and efficient.


