
The Regal's exhaust pipe has a ground clearance of 30.5 cm, and the half-height of its wheels is 32.5 cm. The half-height of the wheels is a conservative safe wading depth. At this water level, there is a possibility of water entering the exhaust pipe, but it won't cause the engine to stall, so you can safely pass through. Below is relevant information: Wading driving: Always drive at a low speed. For manual transmission vehicles, depending on the water depth, it is recommended to use second or third gear. In cases of deep water and heavy traffic, use first gear. Wading limit: The vehicle's air intake is located behind the grille, with the opening facing forward. The air filter is positioned about 5 cm above the air intake, so even if some water enters the intake, it won't reach the air filter. The Regal's air intake has a ground clearance of 61 cm, which is its wading limit. This is roughly equivalent to five-sixths of the wheel height, or the top of the wheel hub. When the water level reaches this point, although there is still about 5 cm to the air filter, it already prevents the engine from breathing normally. Therefore, when the water level reaches the upper seam between the wheel hub and tire, you should not continue wading.

I've been driving a Regal for several years, and the issue of wading depth really can't be generalized. Generally speaking, for sedans like the Buick Regal, the official recommendation is not to exceed 30-40 cm of water depth, roughly up to half the height of the wheels, depending on the year and configuration. When I encounter flooded roads, I always slow down to under 10 km/h to prevent water from rushing into the air intake or exhaust pipe, which could cause the engine to stall due to water ingress—that would be a big problem. After wading through water, I also check under the car for any residual mud or sand to avoid corrosion of parts. Safety first—it's best to detour around deep water or wait for it to recede before proceeding. After all, in daily driving, it's not worth risking engine damage for the sake of saving time; repair costs aren't cheap. In short, standards vary from person to person, and measuring the water depth before testing is always a good idea.

As a family car user, I'm concerned about the Buick Regal's wading standard primarily for safety, especially when traveling with kids. This model can handle about 30cm of water at most - going deeper risks flooding the intake system. I always stop when water reaches one-third of the wheel height, preferring detours over risks. Once after rain, I slowly drove through neighborhood flooding only after confirming water didn't reach the axles. Wading standards vary - during maintenance, check if tire wear affects sealing. The key is verifying the air filter is dry before starting; moisture can cause engine failure. Never rush through water - safety first. While the Regal is sturdy, deep wading may damage electrical components.

I think young people buying cars like the Regal need to pay attention to the wading depth. The official data suggests a safe range of 25-30 cm, mainly because the air intake position is low. In practice, I would drive in low gear and slowly wade through the water, making sure the water level doesn't exceed the front bumper. After wading, don't forget to dry the electrical lines with a dry cloth to prevent short circuits. Sometimes new cars have sensor alarms, but don't rely on them to test the water recklessly. During regular maintenance, check if the chassis sealing strips are damaged to avoid water leakage risks. Although the standards are simple, practice requires caution.


