5W-30 is when it's hot. They are the same when both are cold.
530
520
When there are differences in numbers in motor oil, there is a difference in viscosity. A lower number has lower viscosity and is good for warmer climates. A higher number is good for colder climates.
530 as it is only 3.70 away and 520 is 6.30 away so as 3.70 is smaller than 6.30 the answer is 530
How about: 522
-- Any odd number between 520 and 530 must start with "5 2",so that's 7 out of the sum of 12 right there. How much is left ?-- (12 - 7) = 5 . So the missing digit is 5 .-- The number is 525 .Check:-- 525 is odd.-- 525 is between 520 and 530.-- (5 + 2 + 5) = 12 .Yep. It works.QED, man, QED !
Oil is thicker than water
20W50 is the " thicker " oil
The higher the number the thicker the oil.
at high speed and old oil...
Engine oil does not get "thicker" at high temperatures it gets thinner.
530/70 hours = Seven and four sevenths hours