Tires

Question 1

What are the letter designation tire types?

Answer 1

P: passenger
LT: light truck
T: temporary (spare)

Question 2

How do you read tire specs? EX, 245/75 R16

Answer 2

245 is the width
75 is side wall aspect ratio - 245 x 75% = 184 mm tall side
R16 is the diameter in inches

Question 3

How do you know how old the tires are?

Answer 3

Search for the DOT numbers (first two numbers are the week, second two are the year).

Question 4

What needs to be looked out for when mounting the tire?

Answer 4

• is it symmetrical tread?
• are there rotation arrows?
• is the inside or outside labelled?

Question 5

When should you rotate tires?

Answer 5

• every 10,000km
• if worn out (measure tread with a gage).
• check mitchel for rotation directions.

Question 6

What is the legal limit for tread depth?

Answer 6

2/32 or 1.6mm

Question 7

What type of patch is required when holes are greater than 6mm 1/4 inch?

Answer 7

A patch and plug (installed inside the tire).

Question 8

What are the effects of imbalanced tires?

Answer 8

• shaking/vibrating steering wheel
• vibrating seat

Note: an imbalanced wheel can cause tire wear over time, and suspension and steering wear.