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Well we are getting somewhere I think. So what does this unofficial study show so far? If you drive slower, ie lower rpms in a higher gear? (you could drive slower in a lower gear at high RPM's), the car won't overheat the (oil, coolant,air?) as fast. It is true that higher RPM's will tax the engine more in creating more heat due to increased friction. In my previous example, you could run a 3 minute lap in 2nd gear the whole way around the track at 65mph and 7000 rpm. This should create more heat load than normal 10/10th driving utilizing all the gear. I don't know if I would want to test this theory for 30 minutes though, but it does make a good point. Now we need to identify which system is causing the problem. It is interesting to point out that AA just ran their car in 90+ temps at a track event and they said there were no overheating/shut down problems. What's up with that. Our search for answers just got a little more difficult...
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