New engine I just put a new engine in 400 miles ago and was going to put in Royal Purple at 700 miles. Is this a good idea or should I stay with non synthetic engine oil? If I can't use synthetic how many miles do I need to have on the engine before I can?
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1987 GN TE61 Turbo, 4" MAF, Translator Plus, 42.5 Fuel inj, 3" down pipe, hot wire kit with Walbro fuel pump. 1970 Plymouth Roadrunner 440 six pack 3.23 suregrip. 04 Mach 1 Mustang (wifes)slowest of the lot
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