I recently tried some castrol straight 30 weight, and did a hot oil drain at 500 mile, in 50 degree weather. This stuff was so thin it was like water although the film stregth felt good.
Why is it even thinner than a 10w30 at full temp, I thought they were supposed to be equal?
Is this oil thinning too thin?
Why is it even thinner than a 10w30 at full temp, I thought they were supposed to be equal?
Is this oil thinning too thin?