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Tyre Ratings & Best Tyres for Road Use — With Real Vehicle Examples

1. Tyre Ratings: What to Look For These ratings appear on the tyre sidewall and help you judge quality, safety, and performance. Treadwear Rating This tells you how long a tyre is likely to last. The higher the number, the longer it should last. A treadwear of 400 means the tyre will last about 4 times longer than a baseline test tyre. Traction Rating This shows how well the tyre grips on wet roads. The grades are: AA (excellent), A (good), B (moderate), and C (poor). Temperature Rating This tells you how well the tyre resists heat. High heat resistance means the tyre won’t overheat and burst at high speeds. Grades: A (best), B, and C. Load Index This number shows how much weight one tyre can safely carry. You must match this to your vehicle's weight class. Speed Rating This tells you the maximum speed the tyre can handle safely. For example, H = 210 km/h, T = 190 km/h, etc. 2. Best Tyres for Personal Vehicles (By Model) a. Toyota Corolla / Honda Civic Recommended Tyre: Michelin Pr...
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Gears shifting to another.

If your automatic car's shifting gears are changing to another, it could be due to various reasons. Here are some possible causes:

1. Low Transmission Fluid: Check the transmission fluid level and condition. Low or dirty fluid can cause erratic shifting.

2. Faulty Solenoids: Solenoids control fluid flow in the transmission. A faulty solenoid can cause abnormal shifting.

3. Transmission Sensor Issues: Sensors monitor speed, throttle position, and engine load. Faulty sensors can lead to incorrect shifting.

4. Torque Converter Problems: The torque converter might be malfunctioning, causing slipping or hesitation between gears.

5. Clutch Pack Wear: Worn clutch packs can cause slipping or erratic shifting.

6. Planetary Gearset Issues: Problems with the planetary gearset can cause abnormal shifting or hesitation.

7. Computer System Glitch: A glitch in the car's computer system can affect transmission shifting.

8. Throttle Position Sensor: A faulty throttle position sensor can cause incorrect shifting.

9. Clogged Transmission Filter: A clogged filter can restrict fluid flow, leading to abnormal shifting.

10. Mechanical Failure: In rare cases, mechanical failure of the transmission's internal components can cause shifting issues.

It's recommended to have your car checked by a professional mechanic to diagnose and fix the issue. They can perform tests and inspections to determine the root cause and suggest necessary repairs.
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