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Old Jul 17, 2022 | 06:53 PM
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wyrm73
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My 1975 Ford manual says 30 weight below 10 degrees (F) and 50 weight for above 10 degrees for the NP203. 1979 could be different, but it seems likely to me they would be the same. FWIW, the NP205 says 50 weight no matter the temp.
 
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