Re: 1989 Mustang, Driver / Drag / LSR
On the Camaro I've been using oil from Auto Zone with ZDDO (Valvoline Racing oil) AND a can of GM EOS. The Chevy dealer here in town still carries it. After the first oil change I just use the ZDDP oil - and that's with a flat tappet cam. All has worked so far with a couple of different cam changes. With your roller cam I wouldn't expect much of a problem. On the 'Stang I just used regular oil and did a change at about 1000 miles - no issues. Good idea to watch for the health of the converters.
Dan
On the Camaro I've been using oil from Auto Zone with ZDDO (Valvoline Racing oil) AND a can of GM EOS. The Chevy dealer here in town still carries it. After the first oil change I just use the ZDDP oil - and that's with a flat tappet cam. All has worked so far with a couple of different cam changes. With your roller cam I wouldn't expect much of a problem. On the 'Stang I just used regular oil and did a change at about 1000 miles - no issues. Good idea to watch for the health of the converters.
Dan
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