Hi friends, I'm Rob the new kid on the block. We have a 2008 Saab 97-X that we purchased back in 2010 with 39,000 miles on it at that time. Now here we are almost 10 years later and the car is running great and just racked up 95,000 miles on the odometer. I'm trying to follow the suggested maintenance items as outlined in the manual that came with the car so that we can keep her running for the next five years or more and want to do as much preventive maintenance as I can to extend the auto's useful life. The manual says you only need to service either the front or the rear differential when you hear a noise or see any type of leak which may indicate there is a problem needed to be fixed. But, isn't that rather counter productive advice when if you wait that long the damage could already be done and if you intervened earlier one might have been spared a costly repair ? Also, advocates for regular fluid changes say that no fluid will last forever and that it should be changed out at least every 50,000 miles to keep the axles running smoothly. So, hit me with your best shot of advice so we can decide what's best for our lovable gear horse so she doesn't get put out to pasture prematurely before her time.