I agree. This is something the "two million miles of testing" would help determine. However I believe all that testing was done in Europe on European gas which our 87-89 equilivant is not common. Some of that may not be 100% accurate.Can't be measured by the average Joe. Would take a lot of time and R&D for engineers to prove this let alone the buyer. Let's say your right and the engineers have noticed this it would be my guess that it's well into the range of everything else falling apart on the car before it becomes an issue. Everything has faults when designed, it's just what is the weakest link. The above statement concerning this thread I would have to say prove it to be a concern.