Can you mix 5w 30 and 10w 40?

Can you mix 5w 30 and 10w 40? As posted above, mixing 5w30 with 10w40 will give you an oil that performs somewhat better in the cold than 10w40, but less good cold than 5w30, and that has a viscosity a bit higher than 5w30 but a bit lower than 10w40. Mixing different oils will … Continue reading Can you mix 5w 30 and 10w 40?