...valve adjustments and frequent oil changing, are the keys to longevity...
..as far as the interval between adjustments...i'm not sure that I really base it on miles...
..i've grown to judge by the way it performs, when i believe it's needing an adjustment...but it is waay more frequent than the service manual suggests...annd, every time i've check them, they did need adjusting...
..i bought my A50 new in Deceber of 07...damn close to 44,000 km right now, and she performs the best now that she ever has...
..looking forward to yur blogs!!!
peace