What kind of hydraulic oil is good for the rear eight wheels?
In recent years, with the popularity of construction machinery, rear eight-wheelers (heavy-duty dump trucks) have been used more and more frequently, and the maintenance of the hydraulic system has become the focus of vehicle owners and maintenance personnel. Hydraulic oil is the "blood" of the hydraulic system, and its selection directly affects the performance and life of the vehicle. This article combines the hot topics and hot content on the Internet in the past 10 days to introduce in detail the selection method of hydraulic oil for the rear eight wheels.
1. Classification and characteristics of hydraulic oil

Hydraulic oil can be divided into mineral oil, semi-synthetic oil and fully synthetic oil according to different base oils and additives. The following is a comparison of the characteristics of various types of hydraulic oil:
| Type | Features | Applicable scenarios |
|---|---|---|
| mineral oil | Low price, average oxidation resistance, short service life | Ordinary working conditions and limited budget |
| Semi-synthetic oil | Balanced performance, good oxidation resistance, high cost performance | Medium load condition, suitable for most rear eight wheels |
| Fully synthetic oil | High temperature resistance, strong oxidation resistance, long service life | High load, extreme working conditions, such as mining transportation |
2. How to choose the hydraulic oil suitable for the rear eight wheels?
When selecting hydraulic oil, consider the following factors:
| factors | Description |
|---|---|
| Viscosity grade | It is usually recommended to use ISO VG46 or VG68 hydraulic oil for the rear eight wheels, which should be selected according to the manufacturer's recommendations. |
| Anti-wear properties | Hydraulic oil needs to have good anti-wear properties to reduce wear on hydraulic pumps and valves |
| Antioxidant | In high-temperature environments, hydraulic oil with poor oxidation resistance is prone to deterioration, affecting system stability. |
| Brand selection | Recommended well-known brands such as Shell, Mobil, and Great Wall, with guaranteed quality |
3. Recommendations for recent popular hydraulic oil brands and models
According to the search data of the entire Internet in the past 10 days, the following hydraulic oils have been widely praised by rear eight-wheel vehicle owners:
| brand | Model | Features | reference price |
|---|---|---|---|
| Shell | Tellus S46 | Anti-wear, anti-oxidation, suitable for various working conditions | About 200 yuan/18L |
| Mobil | DTE 10 Excel 46 | High cleanliness, extending the life of the hydraulic system | About 220 yuan/18L |
| Great Wall | L-HM46 | Domestic products are cost-effective and suitable for ordinary working conditions | About 150 yuan/18L |
4. Hydraulic oil replacement cycle and precautions
1.Replacement cycle:Under normal circumstances, it is recommended to replace the hydraulic oil of the rear eight wheels every 2000 hours or one year. Under severe working conditions, the cycle needs to be shortened.
2.Replacement steps:
3.Common misunderstandings:
5. Summary
Selecting the appropriate hydraulic fluid is critical to the operation of the rear eight wheels. Mineral oil is suitable for car owners with a limited budget, while fully synthetic oil is more suitable for high-load conditions. Recently popular brands such as Shell, Mobil, Great Wall, etc. all have good products to choose from. Regular replacement of hydraulic oil and attention to maintenance can effectively extend the service life of the hydraulic system and reduce the failure rate.
I hope this article can help you better understand the selection of hydraulic oil for the rear eight wheels. If you have more questions, please feel free to communicate in the comment area!
check the details
check the details