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Old 01-08-2022, 01:52 PM   #18
Axle
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Join Date: Jul 2011
Location: SW Ontario
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Re: What oil are you using in an older flat tappet motor?

Quote:
Originally Posted by 72c20customcamper View Post
GTX classic high zinc it’s on the shelf at Walmart and my autozone
Got my interest, until I looked it up and they do not offer it in a 10w30. I drive my truck in the winter, 20w50 and 15w40 isn't an option. Secondary rant; even here in the cold north seems nobody carries anything but 15w40 diesel oil.
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