In vehicle maintenance, what is the minimum legal tire tread depth for passenger cars in Portugal?
Answer and explanation
Correct answer: C. 1.6 millimeters across the principal grooves of the tread pattern
- Step 1: Statutory tire limit. Step 2. Under technical standards, passenger cars must maintain at least 1.6 mm of tread depth. Answer: 1.6 millimeters across the principal grooves of the tread pattern. Why not the others: 0.8 mm is illegal and dangerous; 3.0 mm is recommended winter depth, not statutory minimum.
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