Posted 20 May 2012 - 09:53 PM
I used to run a 998 (well, two actually, but the older one did the high mileage), and thrashed it, flat out, up and down the motorways most weekends, and a 40 mile each way daily commute. One year it was well over 40,000 miles. Oil changes about every 6000, greased twice as often. The engine lasted till over 120,000, ball joints, set up to move freely, well over 60,000, never changed a hub bearing, but did get though two sets of knuckle joints, umpteen engine steady bar bushes, some CV gaiters (not a single CV joint or pot joint) and a few gearchange rod oil seals (before the mod kit). Oh, and master and wheel cylinder seal kits every 40,000 miles, rigorously, as I had a brake failure early on, and never want a repetition. One clutch at about 80,000 and another, not really needed, with the recon engine after 120,000. Never any internal gearbox parts. A few engine mounts, hoses, fan belts. Plugs, points and condenser every 12,000 or so, but never a coil.
This had a solid mounted front subframe, a rubber mounted one would have broken rear mounts about every 3 months.
In my opinion a Mini can be reliable for high mileages. The reasons that are mostly not seen as such today is that many have been butchered by people with little understanding of what they are doing, and many of the spares are of questionable Chinese quality. Just about everything I used was Quniton Hazell or Unipart, Champion spark plugs, Castrol GTX oil.