Serious Oil Change
Back in the 60's, I used to be able to buy reclaimed oil at my local market. Since it was so cheap, I did the following: drain the old oil and fill up with the reclaimed oil. Then I drove for abo...
Forum Discussion
Cydog15 wrote:
Other than the fun stroll through memory lane, I don't think any of you/us old dukers are going to see any benefit of anything but changing the fluids at recommended intervals.
Fwiw
Ive heard of some laboratory testing oil changed at 70.000 miles and found it to be perfectly ok to use stil..not sure what brand as this was loong time back..
I imagine new oils wouldnt deteriorate much either at longer intervals,,but for the 30$ it cost me to change 6 litres is not a chance Id care to take..
Now if some manufacturer made engines using these spherical rotary valves we wouldnt need to change oil that soon as we do now..
http://www.coatesengine.com/csrv-advantages.html
The CSRV System is comprised of only two moving shafts and does not utilize oil pressure fed bearings, or oil spray; in fact, no engine oil is present in the head of the CSRV Engine. This means the engine oil does not see the hottest parts of the engine, which was the exhaust Poppet Valves. These extremely hot components usually are engine oil spray cooled. This heat would breakdown the atomic structure of the engine oil, thus lowering the oil viscosity, therefore, oil changes are recommended every 3,000 to 5,000 miles. On the other hand, with the CSRV incorporated in the engine design, oil change intervals are extended to approximately 50,000 miles or more.
