When doing a oil change for your car are u always suposed to keep that same viscosity?

for example if your cars manual says it use (5w-10) would u always use that or would u change it, if so then to wat viscosity?When doing a oil change for your car are u always suposed to keep that same viscosity?
You should always use the recommended motor oil unless you are suggested otherwise to use anything different from a professional technician.





Reasons for going thinner would be colder temperatures





Reasons for going thicker would be if your car/truck is burning oil





If you don't have any reason to change it, don't.When doing a oil change for your car are u always suposed to keep that same viscosity?
There is no 5W10.





There is 5W-20, 5W-30, 10W-30, 10W40, 15W-40, 20W-40, 10W, 20W, 30W and so on.





Many new vehicles call for 5W20.





Your vehicle owners manual will give you one to three alternatives.





You can change viscosity's according to your manual.





NEVER MIX viscosity's in the crankcase.





You can mix brands, (military spec 2105) as long as you keep the same viscosity.





You can change brands as long as it is all the same viscosity.





5W-30 is satisfactory in most every gasoline automotive %26amp; light truck engine.
you can go thicker in the summer and lighter in the winter for the most part.





if the manual says 5w30, i would use That in the winter, and use a step heavier in the summer. It will help with dry starts in the winter (oil is thicker when its cold, therefore more difficult to circulate) And in the summer, it will prevent excessive wear by the oil thinning out too much from the heat. Its not necessary, but some people like to do it. really all depends on where you are. I'm from ct, so it gets real cold in the winter, and real hot in the summer





i personally just use a good synthetic like royal purple. and keep the same viscosity all year.
I think the viscosoty should stay the same but you might need to change it if you move to alaska from florida or vice versa. temperature has something to do with determining which viscosity is best, as well as what type of engine you have. Check with the car's manufacturer.
if it says 5w30 ,in a warmer climate you could go 10w30.


but never higher on the high side.


never go with a lower viscosity on the low side.


generally, your manual will give you a heat chart for viscosity. vs temps.


peace
if your car does not burn it then use the recommended weight an 5w10 is NOT the recommended weight











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You can change it, as a car gets older you may want to change it. But once you change the viscosity you should continue to use that same number.
During the warranty period , always use recommended oil and document . Changing weight may not hurt the car , but will give dealer chance to renig on the warranty .
you can but you can also jump up some like 10w30 if you want to. it won,t hurt it. myself i stick with 10w30. 10 weight like you say is just a little too light.
According to the owners manual and/or climate. It might change according to the climate.
Hotter climate, lower number (5-10). colder climate, opposite (30-40). That's all you need to know.
5W10 doesn't sound right to me. Most vehicles it's 5w20 or 5w30. Varies by car manufacturers and years so always check the owners manual.
always use the recommended weight