Is 0w20 a particularly good or particularly bad idea?

[King_V]

Ok, so, if what I've read from the BobIsTheOilGuy website is true, the first number really only indicates relative thickness when cold.

And, from the same source, when cold, 0 is still thicker than 30 is at 212 degrees Fahrenheit.

Given the OEM recommendation of 5W20 synthetic blend, is there any downside to going to 0W20?

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[GTBOB]

the 0W is good for extending the cold temperature flow rates. Easier on the starter, possible better mpg's, and should help the motor get up to temperature quicker. I say if you lived in Canada, it may be beneficial.

 

[HISSMAN]

My 4runner calls for 0w20. It is like water when it goes in, and thinner than water when it comes out, if that is even possible, ha ha! I used 0w40 in several of my cars, and it seems a bit thicker than the 0w20, even though they are both 0 oils.

 

[Bill88stang]

I too have thought about the 0w20 synthetic but wasn't sure if it was too thin for these motors. Mostly due to working at Toyota and we have free oil changes as employees so I could run the 0w20 synthectic for nothing

 

[sonicc]

the difference between 5w and 0w only matters in cold. So if you live somewhere where it's cold for a while, 0w20 should be fine really...it will just have a lower viscosity when starting cold. Which, as previously mentioned, might help with mpgs and less work for the starter.

I used 0w40 in several of my cars, and it seems a bit thicker than the 0w20, even though they are both 0 oils.

A 20-weight difference...the "0" is for winter/cold temps

 

[ForTehNguyen]

skip to 9:45

[ame]

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