Answer: We are a factory and trading company with 15 years of production experience and over 10 production lines!

For small orders, we charge 100%TT. For large orders, 60% is set as a production deposit, and the remaining amount will be paid before delivery.

Answer: We have our own factory and we accept small OEM customization orders. The minimum order quantity is 1,000 small items and 100 large barrels.

Answer: We have nearly 100 kinds of inventory products, and the inventory of each product is approximately 10,000 pieces, can be delivered quickly.

Yes! Samples can be provided!

Answer: We will deliver the goods within 30 working days.

Answer: We have been working in this market for many years. We only sell high-quality products and never sell inferior ones. We have professional production technology to ensure the quality and efficient use of our products.

Is engine flushing required during an oil change? Usually no, unless oil degradation or heavy sludge exists.

Mixing brands is safe if API rating and viscosity are the same.

Causes of low pressure: insufficient oil, wrong viscosity, oil pump failure, clogged filter, excessive bearing clearance.

High pressure: viscosity too high,stuck pressure value.

• When the oil pressure warning light is on, it indicates that there is a problem with the oil pressure.
• The cause of the fault needs to be checked and repaired.Different automobile manufacturers have different Settings for the alarm pressure of engine oil.
• Most brands of heavy-duty trucks maintain an oil pressure of 0.2mpa to 0.5mpa during normal operation, that is, 2 to 5 divisions of oil pressure (0.2mpa is approximately equal to a pressure of 2 kilograms per square centimeter). At low speeds, it is required to be greater than 0.1mpa, that is, 1 division of oil pressure. At high speeds, it is required to be greater than 0.2mpa, that is, 2 divisions of oil pressure.
• Generally, for the same engine at the same speed, the oil pressure is higher when the engine is cold than when it is hot. The higher the engine speed, the higher the oil pressure.

After a major overhaul, the engine should pay attention to the oil pressure. If the oil pressure is too low, it is advisable to consider using SAE 20W-50 high-viscosity engine oil. The first maintenance after the major overhaul is recommended. It is proposed to shorten the oil change cycle. It is recommended to use synthetic engine oil to better protect the engine after major overhauls, but it is not advisable to change the oil too frequently, as it may cause damage to the engine. The lubrication of components has an impact.