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The w refers to oil weight, or viscosity, the higher the number the thicker the oil. 10W 30 and 5W30 are formulated to change viscosity depending on temperature, with lower number being thinner for winter driving. Generally, 5W30 is better for winter and 10W30 better for summer, or 10 W 40 even better for summer.
Check the car manual to be sure for specific type of vehicle.
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What is the difference between 5 and 30?
The difference between 5 and 30 is 25. This is calculated by subtracting 5 from 30, which equals 25. In mathematical terms, the formula for finding the difference between two numbers is to subtract the smaller number from the larger number.
What is the difference between the numbers 25 and 30?
the difference is negative 5 and the difference between 30 and 25 is 5. Some people look at the difference as absolute value so we have |25-30|=|30-25|=5
What is the difference between -5 and 5?
5 - (-5) = 10
What is the difference between the number 10 and the number 5?
5
What is the difference between 5 thousandths and 10 thousandths?
The difference is 5 thousandths. .010 -.005 = .005
