
The Geely Boyue 2.0L requires approximately 4 liters of engine oil, while the 1.8T model needs around 5 liters. The oil change interval for the Boyue is 7,500 kilometers. It is best to determine the oil refill amount based on the oil dipstick inspection, as overfilling the engine oil can significantly impact the vehicle. The Boyue uses Shell semi-synthetic oil with a viscosity grade of 5W-40. However, the oil grade should be adjusted according to the regional environment. Taking 0W-20 as an example: the 0W in 0W-20 indicates the oil's cold-start performance. Engine oil level inspection method: Park the vehicle on level ground, warm up the engine, and turn it off. Wait for more than five minutes to allow the oil to drain back to the bottom of the engine. Open the engine hood, locate the engine oil dipstick, place a cloth under the dipstick's end, pull out the dipstick, wipe it clean, reinsert the dipstick completely, then pull it out again to check the oil level.

I just changed the oil for my Boyue, and the 1.5T engine requires about 4.5 liters. Actually, the official manual states a range of 4.3-4.7 liters, depending on how thoroughly the old oil is drained. I prefer to fill it to just above the middle mark on the dipstick—neither too much nor too little. Adding too much makes the engine feel sluggish, while too little leads to insufficient lubrication and damages the engine. Using a 5W-30 full synthetic oil is most suitable. Remember to check the oil level every 5,000 kilometers, and pay extra attention to the oil viscosity during cold starts in northern winters.

As a veteran owner who has driven the Boyue for ten years, let me tell you that the oil quantity depends on the specific model. My 2.0L manual version requires about 4.2 liters per oil change, but the turbocharged version needs 4.5 liters. Letting the old oil drip for a few extra minutes ensures more accurate refilling. Don’t cheap out on oil—I once used low-viscosity oil and ended up with higher fuel consumption. Here’s a tip: changing the oil filter consumes an extra 0.2 liters, so having a full 5-liter bottle on hand for DIY maintenance is always enough.

During my Boyue's maintenance, the mechanic suggested that adding 4.5 liters of engine oil is the safest option. More oil isn't necessarily better—exceeding the fill line could lead to oil burning and blue smoke. It's recommended to use the manufacturer-specified grade, such as Shell Helix Ultra 5W-30. After each oil change, have the technician warm up the engine and recheck the oil level for accuracy. On a side note, frequent short-distance driving can cause oil emulsification; a monthly highway drive can help mitigate this issue.


