Does the Tiguan L consume engine oil?
3 Answers
Tiguan L does not consume engine oil. The Tiguan L does not exhibit any engine oil consumption issues. This vehicle is equipped with the third-generation EA888 engine, which features technological improvements, including optimized piston rings and cylinder liners. Below is a detailed introduction about engine oil consumption in vehicles: Overview: "Engine oil consumption" refers to the situation where engine oil enters the combustion chamber of the engine and participates in combustion along with the air-fuel mixture. If a vehicle exhibits "engine oil consumption," it can lead to premature failure of the oxygen sensor, increased carbon deposits in the combustion chamber, unstable idling, lack of acceleration power, increased fuel consumption, and excessive exhaust emissions, among other adverse effects. Precautions: Severe engine oil consumption can result in insufficient lubrication of the engine, causing irreparable damage or even complete engine failure. This can significantly increase repair costs and potentially lead to safety hazards.
I've driven my 2018 Tiguan L for 80,000 km and noticed it does consume engine oil, especially when using 0W-20 low-viscosity oil. The main cause is the piston ring design of Volkswagen's EA888 engine, with older models being particularly prone to sticking. I've developed a habit of checking the dipstick every time I refuel and always keep a 1-liter bottle of oil in the trunk. Some oil consumption is normal for turbocharged vehicles, but if you need to top up more than 1 liter per month, it's a cause for concern. Here's a tip: observe the exhaust pipe during cold starts – if you see brief blue smoke, it may indicate aging valve stem seals. I recommend sticking to VW502-certified oils and avoiding cheap off-brand alternatives.
My friend's Tiguan L just passed 100,000 kilometers, and the oil consumption suddenly increased sharply, requiring 1.5 liters of top-up every 1,000 kilometers. The repair shop said it was caused by carbon buildup sticking the piston rings, and the engine disassembly treatment cost nearly 10,000 yuan. Turbocharged engines operate at extremely high temperatures, and frequent short-distance driving leads to incomplete fuel combustion, accelerating carbon deposits. Especially for early models of the third-generation EA888, design flaws made the oil-gas separator less effective, allowing more oil vapor to enter the combustion chamber. It is recommended that owners of such vehicles perform walnut blasting cleaning every 20,000 kilometers and occasionally rev the engine at high speeds during highway driving.
