Would thicker oil do any harm ?

[4door_JayDM]

hey i changed the oil on my mother's '04 4 runner and i bought 10w40 oil not realizing it takes 5w30 and it's my first time changing her oil so would that hurt the engine any ?

 

[cabezzzdb8]

No ill be fine, just a litle more thicker shouldn't be a problem,

 

[DC2_John]

yeah dont worry shouldn't be a huge probldm

 

[4door_JayDM]

yea i knew it was a thicker oil i just didn't want it to harm her motor though i thought it wouldn't i had to be sure...thanks guys !

 

[Black94LS]

i put 10w30 in my teg once, on accident, ran fine and still kicked ass

 

[GSROWNSU]

only problem with thicker oil is it may stiffen your engine up if it gets REALLY cold outside. Like if it's cold out your engine might take a few more cranks to turn over. Not a big deal i accidentally did the same thing to my accord (winter beater) and it's fine besides some harder starting.

 

[Street Anthem]

it works fine on mine...so it shouldnt be a problem

 

[Eviloliv3]

i have ran 20w-50 in my car many times. though i dont have to worry about "cold" in arizona