Quote:
Originally Posted by Soaringcook
Im in houston tx, i was under the impression that it needs 15w40, correct me if im wrong please
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Either will work, 5 works better in cold temps.
A 5W viscosity grade requires the lubricant to flow properly at lower temperatures than, for example, a 15W viscosity grade, so it is expected to be used at lower starting temperatures. ... The 5W might also cost more than the 15W and break down more of the viscosity improver additives in the formula.