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Old 09-11-2019, 01:47 PM   #2
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Mts67C10K20's Avatar
Join Date: May 2017
Location: Dowagiac Michigan
Posts: 193
Re: Oil confusion, please help!

Here in Michigan I've always run 10w40 conventional oil
In my flat tappet cam engines

The article below is a good read on oil difference

Engine Oil Testing Results | The De Tomaso Forums
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