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These 3 common senses about cars are very useful, but few people know them. Come and learn them.

Blog 3年前 (2021-10-03) 322 Views

Whether it’s repairing a car, buying a used car, or buying a new car, the understanding of some commonly used signs will help us a lot, such as buyingtire,yourstireWhat brand and size do you know? For example, when buying a used car, can you tell if the glass has been changed? And there are exception models.

1. Windshield glass logo

These 3 common senses about cars are very useful, but few people know them. Come and learn them.

(1) Generally there will becarBrand logo, no need to explain, such as the "four circles" in the picture;

(2) FY's logo represents Fuyao brand glass, in addition to Pilkington domestic joint ventures, Saint-Gobain domestic joint ventures, Asahi Glass, etc.;

(3) CCC is China's compulsory 3C mark; E1, E stand for EU mark certification; 43R... stands for EU tempered glass standard number; DOT... stands for DOT certification code of the US Department of Transportation; we can understand these.

These 3 common senses about cars are very useful, but few people know them. Come and learn them.

(4) Mark the key points, and the 8 at the bottom of the logo represents the glass production date. The number 8 represents 2008, and the eight small black dots in front represent the month. If the black dot is before the number, it is used: 7-point=month; if the black dot is behind, then: 13-point=month. The picture is January 2008.

Some friends said: Then how to bid in 2017, if it is also 7, wouldn't it be indistinguishable from 2007. The editor believes that no matter how slow the replacement of vehicles is, it has been replaced in ten years. Therefore, the 7 of the new car must represent 2017, and the 7 of the old car must represent 2007. What do you think?

These 3 common senses about cars are very useful, but few people know them. Come and learn them.

Attachment: The picture shows the Weipai VV5 glass produced in July 2017

There are exception brands, such asBMW, Subaru, etc., based on the glass logo is not enough to read the date, can only consult and verify with the 4S shop based on the B-pillar nameplate.

According to the date of the glass, we can judge whether it is a stock car when buying a new car, or whether the glass is original when buying a second-hand car, etc.

2. Tires

These 3 common senses about cars are very useful, but few people know them. Come and learn them.

Tire logos are much easier to read than glass logos. Take 205/60R16 90V as an example. The tire brand is no longer inked, the biggest logo.

(1) 205 represents the tire width, the unit is mm, as shown in the figure, the tire width is 205mm. Generally, the width of family car tires is mostly around 205 and 195mm. For example, BMW X6 tires have a width of 255mm, and Audi RS7 tires have a width of 275mm. What the tire width affects, I believe that all car masters’ partners should know.

These 3 common senses about cars are very useful, but few people know them. Come and learn them.

(2) 60 represents the aspect ratio of the tire section, that is, the percentage of the tire section height and width, as shown in the figure is 60%. Some sports cars have narrow sidewalls and wide treads, that is, low aspect ratio, while off-road vehicles have wide tire walls and high flatness ratios. In general, the aspect ratio is low, the handling is good, but the fuel consumption is increased, and the comfort is decreased. The flat ratio is high and vice versa.

These 3 common senses about cars are very useful, but few people know them. Come and learn them.

(3) R16, R stands for radial tires, which are also the most commonly used tires for family cars, and 16 stands forWheel hubThe diameter is 16 inches, which is what we often call a ten-inch wheel. Generally, the difference in wheel hub size between high and low models is about 1 inch.

3. Engine oil

These 3 common senses about cars are very useful, but few people know them. Come and learn them.

Take 10W-40 in the figure as an example. W represents the oil suitable for winter use. The smaller the previous number, the better the low-temperature startability and fluidity. 40 represents the viscosity of the oil at 100 degrees Celsius. The higher the value, the more suitable for high-temperature working conditions. 0W-20W can start the minimum temperature of the engine from -35 degrees Celsius to -15 degrees Celsius, rising at intervals of 5 degrees.

There are also some engine oils marked with "SJ", "SM", etc., which represent the engine oil grade, and the SA-SN engine oil grade is increased (SA-SH, SJ, SL, SM, SN). The higher the grade of oil can provide better engine emissions, has nothing to do with others.