Interesting. As the one stated, the engine was doomed to fail regardless of oil used. I ran A HDD 5w-30 in my 2000 VW Jetta with an A bypass filter and (with oil testing) changed the oil after 53,000 miles. At 120,000 miles compression was 550-545-555-550. Bearings looked new and there was no buildup in the engine, anywhere. I changed the oil in my MB diesel every 6-10Kmi using syn. The mechanics say it runs like a gas car and that I'd need to get a V8 for comparable performance. Its very clean inside at 279Kmi. There is more than one way to change the oil in car. Some say hot and often, and others say that's a waste of time and resources when considering synthetics. Both seem to have good luck and bad luck from time to time.

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Brian Toscano