Re: AU i6 & V8 engine oil, what are you using & are you happy with it?
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i was running penrite hpr10 10w50 in my 220 kw xr8, the engine loves it, reasonably quiet on start up and holds oil pressure in the heat..
ive now upgraded to penrite hpr15 15w60, only because ive gone forced induction and it gets pushed harder than before, again still quiet on start up and holds good oil pressure when hot...
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