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Keith Park wrote: > They are STILL having problems like this? > Remember the 231 GM V6 that would burn rod bearings if you weren't religious > about 3Kmi oil changes? I called it the "Sludgebuster Six" > I don't recall that, and I was around mechanics and auto parts stores when that engine was in its prime- late 80's-early 90's. I rarely sold rod bearings for those, but I did sell oil pumps. It had a great oil pump design from a mechanic's standpoint- you could change it without removing the pan, and the kit came with different springs for different oil pressures based on what type of duty it would be in. > The 3rd gen RX7 specialists say 2K mi oil changes are crucial for engine > life on those cars as the turbo's run so hot. > > I imagine it helps on rotor tip wear too. > I would have thought by now that modern engineering would have solved the > heat problems but.... > Its not modern engineering. It's modern customers. Joe Average wants an oil change for $20 in 20 minutes. They get pissy when they find out you need an oil change that costs $60-80. We also live in a disposable society. Lots of people lease their cars, so they don't care if the car lasts 10 years. No one does their own work anymore- all the onboard computers scare people, but in my opinion they've made the job in many ways easier because you can plug a diagnostic device and it will tell you what's wrong. > New cars scare me :) > Newer cars will last a very long time if properly cared for. I fully intend to get 200k+ out of my '03 Passat (which translates to 10 years). With 70,000 miles, I had an oil sump was clean and sludge free when I dropped the pan (I bottomed out and put a crack in the old one). But I take very good care of this car. The newer oils will last longer too. I would argue that a good Group IV synthetic (i.e. Mobil1 or German Castrol) would be good for 10-15,000 miles between changes on a non-turbo engine. Modern conventional oils are good for 5000 in severe duty service. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~