What are the precautions for diesel vehicles entering Tibet?
2 Answers
Precautions for diesel vehicles entering Tibet are as follows: 1. Avoid December to March: The winter temperature in Tibet is relatively low, and diesel engines are harder to start in cold weather. If you must go, switch to low-temperature engine oil and diesel with a rating of -20 or -35. 2. Try to choose Sinopec gas stations: Diesel vehicles are most afraid of poor-quality diesel. The fuel quality at small gas stations in Tibet really cannot be guaranteed. 3. Get a pre-trip inspection: At a professional auto shop, give your car a comprehensive "check-up," and it's important to switch to suitable engine oil based on the temperature. When driving on poor dirt roads for long periods, frequently remove the air filter to blow out dust, as "breathing difficulties" can affect the vehicle's power.
I gained a lot of experience from my last trip to Tibet in a diesel vehicle. Due to the low atmospheric pressure in high-altitude areas, the engine's air intake is insufficient, resulting in about a 20% power reduction compared to plains. Don't hesitate to downshift when climbing slopes. The most troublesome issue is cold starts – it's advisable to use -20 or -35 grade diesel and carry some anti-gel additives to prevent fuel line freezing. Try to refuel at official Sinopec or PetroChina gas stations, as fuel quality varies in remote areas of Tibet. Bringing a few bottles of fuel cleaner will definitely come in handy. For vehicle condition, pay special attention to the turbocharging system – high-altitude conditions place greater demands on turbochargers. Brake pads should also be replaced in advance due to heavy braking loads on long downhill sections. Carry snow chains, oxygen tanks, and altitude sickness medication, as weather changes rapidly in Tibetan regions – better safe than sorry. Before departure, clean the fuel-water separator thoroughly, as high-altitude diesel may have higher water content, and you don't want the filter to clog midway.
