In a message dated 16/01/01 9:48:04 AM Pacific Standard Time,
owner-mgs-digest@autox.team.net writes:
> Red Line (or their chemist at the time)
> recommends single weight mineral based oils for break in. Consensus
> over the years in my readings is that an engine is fully broken in in
> 3000 miles, and the first 500 are the most critical. Avoid extended
> constant speed driving or speeds over 65 mph for the first 500 miles is
>
The only problem from a racer's point of view is that the engines never seem
to get broken in, before they are broken! 3000 miles can be several years,
even for a fairly active vintage racer.
And in racing, it is even more important that the rings seat properly!
That's why I always seem to end up running regular oil - fear of putting in
synthetic too soon.
Oh yeah - there is no problem with constant speed at break-in when racing -
break in consists of one, or maybe two practice sessions, after which the
engines are used full bore, meaning never below 5000 rpm, except momentarily
at downshifts, for 30 minutes at a time.
Bill
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