[Fot] race oils for TR6 & GT6

[Enquiries Road & Track]

can those of you circuit racing your car, please let me know what engine
oil you are using.
I used Mobil 1 for years until the price got "silly" .also, it did not seem
to be keeping the engine as clean internally as I would like. . tried a few
locally made alternatives and nothing stood out as any better than the
Mobil 1.
I tried Joe Gibbs Driven HR 15-50 today and it has not held up, with
pressure falling to almost zero on hot idle, despite oil temps not getting
over 90C (exact same as engine water)
thanks, Terry
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