What oil is added to the power pump? Comprehensive analysis of choices and precautions
Recently, the issue of oil for automobile power pumps has become a hot topic, especially in car owners' forums and car maintenance communities. As the core component of the steering system, the power pump is directly related to driving safety and driving experience. This article will combine the hot contents of the entire network for the past 10 days to explain in detail the oil selection, performance comparison and common misunderstandings of power pumps.
1. Comparison of oil types of power pump
| Oil type | Applicable car models | Viscosity grade | Replacement cycle |
|---|---|---|---|
| ATF automatic transmission oil | Japanese/American cars | Dexron III or IV | 2 years or 40,000 kilometers |
| Special steering assist oil | European/domestic cars | PSF-3/CHF-11S | 3 years or 60,000 kilometers |
| Hydraulic oil | Engineering machinery | HVLP 32#/46# | 1 year or 2000 hours |
2. Test data of popular oil products in 2023
| brand | Flash point (℃) | Pour point (℃) | Price range (yuan/L) | User rating (5-point scale) |
|---|---|---|---|---|
| Mobil ATF 220 | 210 | -45 | 80-120 | 4.7 |
| Shell PSF-3 | 198 | -42 | 70-110 | 4.5 |
| Great Wall CHF-11S | 205 | -40 | 50-90 | 4.3 |
3. Five serious consequences of adding wrong oil
1.Seal corrosion: Non-special oil will cause rubber parts to expand and age. Recently, there have been many cases of oil leakage caused by a certain German car forum.
2.Poor low temperature fluidity: Car owners in Northeast China reported that the use of inferior oil has a heavy turnover in winter.
3.Abnormal wear of the pump body: Data from a third-party testing agency shows that wrong oil products will increase the wear rate by 300%.
4.Oil blockage: The generation speed of oil sludge is accelerated, and the maintenance cost is as high as 2,000-5,000 yuan.
5.Steering assist failure: In extreme cases, safety accidents may occur.
4. Latest purchasing suggestions (updated in September 2023)
1.View original manual: BMW G series requires the CHF-11S standard, while Toyota's new TNGA platform requires WS low viscosity oil.
2.Observe the oil condition: Normally, it should be transparent red or light yellow. If black precipitation occurs, it should be replaced immediately.
3.Disadvantages of mixed use: The formulas of different brands of base oils vary greatly. The actual measurements of the forum show that the pH imbalance rate after mixing is 92%.
4.Replacement cycle: New energy vehicles can be replaced by a 5-year reduction in load due to the motor assistance.
5. TOP3 Frequently Asked Questions for Car Owners
Q1: Can the power pump oil be mixed with mixed?
Absolutely forbidden! Mixing oil products of different formulas will produce precipitates. The actual test of a short video platform shows that oil sludge will appear 48 hours after mixing.
Q2: How to tell if it’s time to change the oil?
When the following symptoms appear, you need to change immediately: ① There is a "buzzing" sound when turning ② The steering wheel becomes heavier ③ The oil becomes black and burnt.
Q3: Do electric power supply need oil change?
Pure electric models (such as Tesla) do not need to be replaced, but oil-electric hybrid models (such as BYD DM-i) still require regular inspections.
Conclusion:According to the latest data from the China Automobile Maintenance Industry Association, the correct selection of power pump oil can extend the system life by more than 40%. It is recommended that car owners check the fuel level every quarter and conduct professional inspections every two years to ensure driving safety and driving comfort.
check the details
check the details
en
