<VV> Re: "regular oil"

[djtcz at comcast.net]

> 
> I've never used synthetics and I don't dispute the claims made for them but the 
> fact is I've never had an oil related problem with an internal combustion engine 
> using REGULAR oil with reasonable change cycles. 

I'm starting to suspect that valve guides worn beyond the service limit at 100,000 miles, timing chains replaceably loose at 100k, or first gear synchromeshes that go ZING or balk are oil related problems.  Not as insistent as a spun bearing or a flat cam lobe, but a problem none the less.