Thursday, Apr 20, 2006 at 16:07
Call me a sceptic if you must but I will bet it was running hot.
There is no substitute for high quality lubricant in large quantities.
I quote from the ryans radiators web-site : www.ryansradiators.com/oil.htm
Engine Oil Cooling
Almost one third of the heat generated by the engine must be removed by the vehicle's two cooling systems. That's correct your engine has two cooling systems. (1) The top of the engine: the area around each cylinder in the engine block, the combustion chamber areas in the cylinder heads and the intake manifold, dispel heat through the engine's radiator coolant system. (2) The rest of the engine: the crankshaft, bearings, camshaft, lifters, connecting rods and pistons are only cooled by engine oil.
The ideal operating range for engine oil is 82°C through 93°C. While operating within this range, the oil works as a lubricant, coolant, and cleansing agent in the engine. Modern engines generally run with radiator coolant temperatures between 90°C and 105°C with oil temperature ranges up to 25°C HOTTER. In other words, when the engine is performing flawlessly, the engine oil is already overheating! Oil that exceeds 105°C rapidly loses its ability to lubricate and cool causing accelerated fatigue and premature component failure.
Sometimes it seems technology is going around in a learning circle!
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