OK. I will preface this question by saying I am a tire Nazi. I replace tires when they reach six years and I religiously check my tire pressure every day on the road. So here's my question: I am b...
You answered your question in the first sentence of your post. You stated you replace tires at 6 years. WELL, these tires are at LEAST 8 years old. AGE, is AGE, whether setting in a garage or rolling on the highway. I would be replacing the tires.