Does the Regal 1.5T have a particulate filter?
3 Answers
The Regal 1.5T is equipped with a particulate filter. Most China VI-compliant models come with a particulate filter, and based on current information, the Regal 1.5T also includes one. A particulate filter is a ceramic filter installed in the exhaust system of diesel engines, designed to capture particulate emissions before they enter the atmosphere. It can reduce soot emissions from diesel engines by over 90%, and the captured particulate matter is subsequently burned off during vehicle operation. How the particulate filter works: The diesel particulate filter is coated with metals such as platinum, rhodium, and palladium. The black smoke containing carbon particles emitted by the diesel engine enters the particulate filter through a dedicated pipe. The densely arranged bag-type filter inside captures the soot particles on a metal fiber mat. When the accumulated soot reaches a certain level, the burner at the end automatically ignites, burning off the captured carbon particles and converting them into harmless carbon dioxide. To check whether the Regal 1.5T has a particulate filter, you can use the following three methods: 1. Refer to the and to see if there is a particulate filter function. Additionally, carefully check the fault codes in the manual to see if there is a "particulate filter" warning light indicator. 2. Check the label on the oil filler cap. If it clearly states 0W-20 grade oil, it indicates the presence of a particulate filter. 3. Look behind the catalytic converter on the exhaust pipe for a cylindrical section. If present, that is the particulate filter.
The Buick Regal 1.5T model is indeed equipped with a particulate filter, which is designed to meet the China VI emission standards. I've been driving this car for over two years, and initially, I had no idea about the existence of this device until the maintenance technician pointed out the metal canister near the exhaust pipe during the first service. This device mainly captures carbon particles from the exhaust, and it automatically burns off accumulated carbon during highway driving. I remember one winter when the engine warning light suddenly came on the dashboard, and the diagnosis revealed that the low temperature caused a temporary blockage in the filter. The issue was resolved after driving on the expressway for about ten minutes. The manufacturer actually reminds in the manual to maintain appropriate engine speeds, and now I make sure to avoid prolonged short-distance low-speed driving.
Attention to all Buick Regal 1.5T owners: This model is equipped with a particulate filter across all variants. Last time when accompanying a friend to the repair shop for exhaust pipe rattling, the technician detected regeneration parameters in the engine data stream using a diagnostic tool, confirming the device's presence. While urban driving conditions generally don't affect its operation, those frequently driving in congested areas should consider monthly highway runs to clean the system. A colleague resolved a fault code by using Sport mode to increase RPMs. As most new vehicles now come with this device, there's no need for excessive concern—just remember to check the exhaust system for carbon buildup every 5,000 kilometers.
