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aw32
Oil is thicker than water
20W50 is the " thicker " oil
The higher the number the thicker the oil.
Engine oil does not get "thicker" at high temperatures it gets thinner.
10w30 is thicker than 5w20
only if your engine has trouble keeping the oil pressure up. If it hasn't a thicker oil won't do you any good.
no but depends what oil???
0w30
5W40
15W40
10w40 is thicker (but only when hot, they are the same thickness cold.)