One service rep had told me that after five years, the tires were dry-rotted, and it's p ossible that's the case, but the rear tread was at point it wouldn't have passed inspection, so it was time to change them anyway. The Contis lasted about 35K miles, but when I hit a nasty pothole heading into DC, four inches of the sidewall blew out completely. Result: Increased average tire life while maintaining high safety characteristics and performance).I bought these as replacements to the factory Continental "Conti-Pro" run-flats. High mileage (Improved performance through optimizing the tread contact area, tread compound and profile design.Result: Noise reduction of 1dB corresponding to a 30% reduction in subjectively perceived tire noise). Low noise (Lower road noise thanks to a special tread profile, carcass design and materials.Result: Minimized toll on the environment). Clean air (In addition to the reduced fuel consumption and emissions, the Cinturato Family is 100% free of highly aromatic oils, due to its new, specially developed polymers and the process used to mix the compound.Result: Reduction of almost 4% in fuel consumption and CO2 emissions). Energy efficient (Up to 20% less rolling resistance as a result of the improved tread compound, sidewall geometry and internal tire structure.Pirelli’s first “Green Performance” tire, the Cinturato P7 All Season Run Flat has been created to take full advantage of the latest materials, structures and tread pattern design in order to guarantee savings, respect for the environment, comfort and safety on all road surfaces.Cinturato P7 All Season Run Flat placed amongst the highest in ADAC summer tire testing, confirming its leadership in terms of performance, safety and eco-compatibility. Traditional performance and safety combined with the new environmental features of the “green performance” philosophy. A high level of performance in all weather conditions.
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