Hey guys, i recently added half a qt. of 5w20 oil in my evo.. and the old oil i had in my car was 5w30.. Will this harm the car? Should i change re-change the oil?

 

No you will be fine

 

You're fine.

 

thanks for the information guys!!

 

Fine as long as you don't mix synthetic with conventional oil.

 

It is safe to mix synthetic with conventional oil. It is less safe to mix different brand synthetics as they may use different base stock. It is generally safe to mix same brand synthetics as they will use the same base stock.

 

You'll be ok but if you're worried change your oil. You can get 5 quarts and a filter at Walmart for under $30.

 

You're fine if you don't drive it too hard frequently (e.g. going on a track or something). If you're paranoid, just change it out.

 

You're safe bud, no worries just take it easy

 

Half a quart wont do any harm at all. Dont worry about it!

 

its fine

 

engine could blow up

 

jk