1uz-fe

[silent_riot]

Guys,

What kind of oil is used in our climate for a 1uz-fe?
In the manual, 5w30 is recommended for temperatures 38 deg Celcius and lower.
10w30 is recommended for temperatures above that.

I suppose our climate satisfies both, but which would be better to use?

[psycostud666]

Sometimes the recommended oil may not be the correct choice due to the age of the engine, or what is your daily commute.

I have a 4age and a mechanic told me its recommended that i use 10w30, but because the engine is over 10 years, i should 10w40. another mechanic said its fine to use 20w50, i did and the VVT moved sluggish. i usually change the 10w40 every month to six weeks, with the 20w50, it gave me about 8 to 10 weeks b4 the oil needed changing.

So after trying all, i decided to stick with the 10w40, Helix H7

[Big Z]

Your owner's manual indicates that 10W30 is the correct oil to use.
Only deviate from this if you are consuming oil via the piston rings.