2006-08-05 17:45:47 · 11 answers · asked by Bob's your uncle 1 in Cars & Transportation ➔ Maintenance & Repairs
Multiviscosity oil flows when it is cold and does not thin out too much when it is hot.
2006-08-05 21:55:39 · answer #1 · answered by Lee J 4 · 0⤊ 0⤋
It tells the consumer that it is a multiblended oil the W stands for the weight of the oil or a more simple way to look at it is thikness of oil, so a 10w30 is a mix of 10 and 30 wait oils. making it easyer to use for multiple types of engines.
2006-08-05 18:03:08 · answer #2 · answered by mburleigh8 5 · 0⤊ 0⤋
That identifies a multi-viscosity oil. Its cold flow characteristics are the same as an SAE 10 motor oil and its hot flow characteristics are the same as an SAE 30 motor oil.
2006-08-05 17:52:28 · answer #3 · answered by Bostonian In MO 7 · 0⤊ 0⤋
its the thick ness of the oil for exsampl 10w30 5w30 put them in the freezer wait a few hours look at the thickness of the 2 oils that shoul explain some what of why we have different oils
2006-08-05 17:52:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋
differential of grades of oil. Like 10w30 is heavier than 10w40 oil.Just to separate the grades of oil
2006-08-05 18:01:34 · answer #5 · answered by obberdee2006 1 · 0⤊ 0⤋
this may sound simple........Oil is blended to work hot or cold. 10W oil is good when U start yer car cold in the am. Now when it's warm it needs heavier oil...........that's where the 30-40-50 comes in. Usta be 50 yrs ago U got one weight oil. Put 20 wt in car in winter 30 wt in summer. Oil is important change it regularly.
2006-08-05 17:57:21 · answer #6 · answered by Anonymous · 0⤊ 0⤋
as the oil warms up,it changes viscosity...the 10 i think is the oil at ambient temperature and the 30 is when the engine is at opperating at temperature
10 = cold
w = warm
30 = at normal operating temp.
2006-08-05 17:57:45 · answer #7 · answered by crazycul1 5 · 0⤊ 0⤋
10w-30 means it can flow like a 10 weight (acts like one) and is a 30 weight at operating temp...... w stands for winter.....
5w-30 is like 10w-30, just has a little better cold weather flow, so less startup wear in the cold.... common practice is 5w-30 in the winter, 10w-30 in the summer because 10w-30 is a little more shear resistent than 5w-30.
2006-08-07 18:04:33 · answer #8 · answered by 572ci. 5 · 0⤊ 0⤋
10 w 30 means when the engine is cold its 10 weight for easy starting when it warms up it thickens up to 30 weight for better engine protection
2006-08-05 18:10:35 · answer #9 · answered by mike w 1 · 0⤊ 0⤋
It tells you the viscostity (thickness) of the oil.
2006-08-05 17:55:01 · answer #10 · answered by Mac Momma 5 · 0⤊ 0⤋