Thread: Newer Oils in Older Engines
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Old March 6th, 2013, 06:40 PM
bigblockv6 bigblockv6 is offline
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Default Re: Newer Oils in Older Engines
I'm using Rotella 15w-40 in my 478M as the breakin oil and I think I'll continue using this oil for good. Pete Chronis Northern Cal. 68 GMC KM-2500 478M V6
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