only if your engine has trouble keeping the oil pressure up. If it hasn't a thicker oil won't do you any good.
Yes you can use 5W20 oil instead of 5W30. One is just thicker then the other. The 5W20 is better in the winter and the 5W30 is better in the summer.
Oil is thicker than water
20W50 is the " thicker " oil
The higher the number the thicker the oil.
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.
the temperature outside will thicken the oil in the winter in the summer you should use thicker because the heat will thin en the oil btw I'm 15 and know this
recommend using thicker oil just dont beat on you car
Engine oil does not get "thicker" at high temperatures it gets thinner.
10w30 is thicker than 5w20
8 oz. of PAG 46, or PAG 100, or PAG 150 the numbers mean higher the number the thicker the oil. Thicker oil is better in high temp. situations..... p.s. 8 oz. of oil + 2 12 oz. cans of 134a. (if it is completely out)
I would go with the 20 since it's thicker. 20 is NOT thicker then 30. Yes you can use a 30 weight oil with no problems. 20W oil may be recommended in order to achieve maximum fuel efficiency but, using a 5W30 oil will protect the engine better!
no but depends what oil???