
Baojun 730 fuel filter should generally be replaced once a year or every 20,000 kilometers. The function of the fuel filter is to remove solid impurities such as iron oxide and dust contained in the fuel, prevent the fuel system from clogging, reduce mechanical wear, ensure stable engine operation, and improve reliability. If the fuel filter is too dirty or clogged, the engine may experience weak acceleration and difficulty starting when the car accelerates. Baojun 730 is a family MPV under SAIC-GM-Wuling Baojun. The vehicle has a length, width, and height of 4780mm, 1820mm, and 1755mm respectively, with a wheelbase of 2750mm. The front suspension adopts a MacPherson independent suspension, while the rear suspension uses a torsion beam non-independent suspension.

I've been driving my Baojun 730 for five years now, and I'm particularly meticulous about maintenance. The official maintenance manual recommends replacing the fuel filter every 20,000 to 30,000 kilometers, but I believe it really depends on the specific circumstances. For instance, since I always use 95-octane fuel from reputable gas stations and mostly drive in urban conditions, I stick to replacing it at 30,000 kilometers on the dot. However, if you frequently drive on construction sites, encounter dusty environments, or often refuel at small gas stations, you should consider replacing it at 20,000 kilometers. Once, I went nearly 40,000 kilometers before changing it, and when I took it out, the filter was noticeably clogged with impurities. I could feel the engine wasn't as smooth during acceleration as before. So, don't skimp on that 200-yuan filter to save money—it's not worth putting your entire fuel system at risk.

I've repaired quite a few Baojun 730 models and found that fuel filter clogging is a common issue. Many owners wait until 40,000-50,000 kilometers to get it fixed, by which time the fuel injectors are also clogged, making cleaning more expensive. Practical experience suggests: for gentle city driving, replacing it at 30,000 kilometers is safer; if you frequently haul loads, drive long distances, or fuel quality is unreliable, it should be checked at 25,000 kilometers. The most extreme case I've seen was a completely blocked filter causing the engine to stall, with towing costs ten times more expensive than the filter itself. Remember, the filter is located near the fuel tank under the chassis—be careful if replacing it yourself.

The maintenance manual specifies replacing the fuel filter at 30,000 km, which is non-negotiable. However, I believe fuel quality matters more: If the current 92-octane gasoline is clean enough, sticking to the manual's mileage is fine. But if you frequently use cheaper fuel from private gas stations, I recommend replacing it earlier at 20,000 km. Once, while helping a neighbor inspect his car, we poured out half a cup of black residue from his 18,000 km filter—shocking! Additionally, in northern winters, fuel tanks are prone to wax buildup, putting extra strain on the filter. It’s wise to keep a new filter ready by 20,000 km.


