For car maintenance, is it better to bring your own engine oil or buy it at a repair shop?

If the car is out of warranty and you continue to go to the 4S store for maintenance, you can bring your own engine oil, but you have to ensure that the engine oil you buy is the same model and not fake. Use a repair shop. I am a repairman. The quality of the repair shop’s purchasing channels is guaranteed and there will never be fake oil. And the purchase price of the same oil is definitely cheaper than yours, such as the same Jin Mobil. For this problem, I think it is better to buy it from a repair shop, in case your car's engine has abnormality in the future, and the repair shop will blame you. They will say that engine abnormalities are caused by problems with the oil you brought yourself, and they will push themselves completely away.

I have a colleague who bought the engine oil and added it himself. He had a friend in a 4S store who had discounts on engine oil, so he came here by himself. Or if you don’t trust the store, you can buy it online. Nowadays, there are many O2O car maintenance platforms, such as Wuyou.com, AutoSuperman, Tuhu Car Maintenance, LeCheBang, etc. They are all provided by manufacturers. Those who have authorized distribution licenses are not alarmists. Today’s fake engine oil is very conscientious. As someone who once worked in a lubricating oil company, I am also “interested” in fake engine oil. I have conducted unannounced visits. As a buyer, I contacted communicate with each other. The slogan of a fake engine oil factory hangs prominently.

The price of a fully synthetic product in a repair shop is just over 200, and the price on the official website is nearly 400. Many people in the repair shop can’t tell the difference between genuine and fake. Last time I bought the fully synthetic product from the official flagship store of Great Wall Lubricant for an event. It’s more than 160. It doesn’t matter if you have a Bosch filter and you can find a reliable auto repair shop. You can just buy it directly from the auto repair shop. If you want it cheaper, you can buy it online and go to the auto repair shop to replace it. Anyway, as long as you can buy it, it’s reliable. A suitable engine oil is enough. Car maintenance is not just about changing the oil. The store will help with many aspects. Old customers will not be fooled, but will give reasonable suggestions. On the contrary, some customers who do not trust the store and are unstable are the most easily deceived.