IW STi Forum banner

1 - 3 of 3 Posts

·
Registered
Joined
·
482 Posts
Discussion Starter #1
Just curious if anyone has noticed a difference going from 5w30 to 5w40 oil if tuned with 5w30 in engine? I guess my question has more to do with the engines ability to stay within the tunes parameters safely without needing a tune refresh given the added viscosity resistance. I'm stage 2 with EL header.
 

·
Registered
Joined
·
105 Posts
Just curious if anyone has noticed a difference going from 5w30 to 5w40 oil if tuned with 5w30 in engine? I guess my question has more to do with the engines ability to stay within the tunes parameters safely without needing a tune refresh given the added viscosity resistance. I'm stage 2 with EL header.
You don't need a tune for oil....

Sent from my SM-G955W using Tapatalk
 

·
Registered
Joined
·
1,545 Posts
Nothing to worry about, you will be fine with either oil. You do not need to adjust the tune for something like that. The only time a tune needs to be adjusted or redone is if you are so to speak changing the way the engine breathes or controls power.
 
1 - 3 of 3 Posts
Top