Say, my car still looks nice and runs great at 182,000 miles.....until I heard something underneath the car 2 days ago...when I accelerate/and or push the gas I hear like slightly clanking no much ....I've bee told It might be tranny/or the heat shield from the catalyc converter could be lose???? But then, I check my tranny oil ..its filled...check the oil it was very low (but I have no leak at all) but had oil change at 181,500...went back to the shop -Tireplus- told them about/ask about the oil change... and they recorrect the oil at no charge!!! (idiots) i think they forgot to put oil in it...or burns up oil (synthetic)..