I don't think there is a 'new' seal problem with synthetics.
Many of the people I race with use synthetics, including me.
No leaks.
You can be assured we aren't using original seals.... They wore out years
ago.
Larry Hoy
> -----Original Message-----
> From: owner-mgs@autox.team.net
> [mailto:owner-mgs@autox.team.net] On Behalf Of Howard Battan
> Sent: Sunday, August 01, 2004 6:46 PM
> To: 'MG List'
> Subject: Synthetic oils - was - Oil for Overdrive Transmission
>
> Thanks Larry. One of the comments made in this dissertation was:
>
> >>There are a few cautions to observe with synthetics.
> According to the
> same chemist, "On pre1980 cars, you may have seal problems
> (newer cars have compatible seals). <<
>
> Does anybody know if the materials used in new aftermarket
> seals for the LBC engines like my 1600cc MGA engine are
> compatible with the synthetic oils? I just had my engine
> completely overhauled, and after a proper break-in period
> with Castrol 30w (as directed), I'd like to consider using a
> synthetic oil. If the material the new seals (for old cars)
> is not up to the task with synthetic oils, I may want to stay away.
>
> I guess a few comments from folks who have used synthetic
> oils in newly rebuilt engines would be helpful.
>
> Recommended or not?
>
> Howard Battan
> Auburn, WA
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