Nowadays, there are many brands of engine oil on the market, and the prices are mixed. It is definitely a headache to choose.

Let’s talk about viscosity first. Reiz’s engine design is precise, and the most suitable viscosity is 20. You can also use 30 when the weather is hot in summer. As for the viscosity above 30, it is relatively hot. It is chosen by those who often go to the track or street racing (often 5 or 6K rpm). We ordinary car enthusiasts do not need it at all, and the negative impact it brings is quite large, that is, fuel consumption. , if you have been using 20 viscosity and suddenly switch to 40 viscosity, then the difference in fuel consumption is amazing...

As for the number in front of the viscosity, it is 0, 5 or 10, which represents low temperature start Ability, which represents the fluidity of engine oil in low-temperature weather. Like us in the north, 0 is most suitable in winter. In summer, you can continue to use 0 or switch to 5. As for 10, it is hotter in the south. Only car enthusiasts will choose it. Therefore, car enthusiasts in the north should remember that it is best to use two-season engine oil when maintaining their cars. In winter, use 0-20. 0 maintains low-temperature startability. 20 viscosity is thinner and has better fluidity at low temperatures in the north.

In summer, you can use 0-20, 5-20, 0-30, or 5-30. If you drive more vigorously, choose 30 viscosity. The higher the viscosity, the better the high-temperature fluidity. The better, the better the protection will be when the engine rotates at high speeds.

Let’s talk about brands:

There are a few well-known brands on the market now, M1, Shell, Castrol, that’s all.

These oils are usually OEM oils from big-name car manufacturers, such as M1 for Mercedes-Benz, Shell for BMW, etc.

In fact, this is not the case. Don’t think that the oil used in good cars is better.

For a good engine oil, the choice of base oil determines everything. These big-name engine oils are all blended with Category III base oils and Category IV oils. The quality can be imagined. If you ask me how engine oil is classified, you can Baidu.

So I recommend a few performance oil brands:

Redline. Category 4 Oils Polyesters

AMSOIL. Category 4 oil monoester, diester technology (including Category 5 oil)

Mott. Type 4 oil diester technology (including Type 5 oil)

Among these three types, French Mott is the most expensive, and it is indeed a rare good oil, but the price determines that it takes the high-end route after all. We The Reiz is really a waste to use. At most, you can use 8100, but the cost-effectiveness of using 8100 is not high.

Redline, this American brand that has been very popular in the past two years, is priced at an affordable price and the effect is very good. It is especially suitable for street racers. It has excellent engine protection and sound control at high speeds. Not bad (I personally tried it for 1W kilometers), but the biggest drawback is its cleaning ability and decay ability. These two drawbacks are the fundamental reasons why I abandoned it.

Finally, the American brand AMSOIL is highly recommended to everyone. Mott, Redline, and AMSOIL are representatives of the three major performance engine oils in Europe and the United States. Among these three, AMSOIL has the highest market retention rate, ranking first (Redline second, MOTT third) because they entered China late. , so it is better known. Every performance engine oil has its specialties. Mott's 300V uses top-notch diester technology, which gives users the direct feeling of _quiet! Redline uses multi-lipid technology. Anyone who has used Redline knows how rich and full the sound of the engine is at high revs. The engine protection ability at high revs is naturally very good. Then AMSOIL is its decline control.

The SSO series can meet the promise of 5W kilometers without oil change, and the ASL series can achieve 2.5W kilometers.

The ASL series has the viscosity 0W20 used by Reiz in winter, while the SSO and ASL series have the viscosity 0W30 and 5W30 used by Reiz in summer.

Choosing AMSOIL is the best choice among the three products I have tried. The final decision after using a large engine oil, the reasons are: affordable price, quieter idle speed, and good recession control.

The reason for giving up the other two is that Mott 300V is too expensive and 8100 is not worth it. The red line has poor cleaning power and decay control.