" From: David Crooks <david.crooks@xxxxxxxxxxxx> " " " Engine break in: There's been a lot of stuff written about using " conventional oil during the break in period. The counter point is that " some of the most exotic motors come with synthetic from the factory... they might be pre-broken-in. it's possible today to make engines that require little break-in time, and they might be running them on test stands before installing them in cars; lincoln did this back in the early '60s - 2h on -every- 430, incl. 30m at full throttle. those cars would regularly go 250000mi without touching the engihe. even more remarkable considering the inattention they likely got and the oils of the day. " Personally, I believe it makes some economic sense to use conventional " for the first couple of changes, when you're changing it on really short " intervals, but if you've money to burn, I see no reason you couldn't use " synthetic from day one. i've heard that synthetics are too slippery to allow proper break-in wear. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list