The difference between a heavy-duty motor oil and one that hasn't earned the HD grading is largely a question of viscosity. Heavy duty oils like Valvoline All Terrain SAE 15W-40 are intended to ...
“This equipment manufacturer recommends low viscosity engine oil SAE 5W-40 for temperatures ranging from -22° F to 120° F and SAE 15W-40 from +15° F to 122° F,” says Mark Betner, heavy ...
While mower maintenance is infrequent, it’s also important to do properly—starting with the correct type of oil for lawn ...
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