not a good idea 0w20 is very thin oil. unless your engine calls for it it will go right through your piston ring & burn the oil. 10w 30 is a much thicker weight.
Use Mobil 1 or equivalent.
10w30
for 4.0l/ 4.7l H.O. use 10w30 for 4.7l use either 10w30 or 5w30 but 5w30 is preferred
Should u use 10w30 or 10w40 in the winter
If the recommended oil is SAE30 why would you use SAE 10W30? Some mowers recommend either of these weights but if your recommends 30W then using 10W30 will cause it to use oil.
10w30
It can vary between 30W and 10W30. L-heads use 30W, OHVs often use 10W30.
Just use what Toyota recommends unless you live in a extremely cold place,then I'd go 0w20 because it flows better in the cold.
10w30 will work just fine in the 2.4L engine.
0w30
Yes. SAE 0W20 means that the oil has zero viscosity in winter. This oil does not exist, which is just as well because if it did it would drain right down into the sump leaving the engine unlubricated. Several companies make a SAE 0w20, including AMSOIL and Toyota. In cold temperatures the oil is thicker than at warm temperatures. Because it has a lower viscosity, it lubricates the engine faster than a higher viscosity oil. Toyota is specifying 0w20 next year.