2021 5.0 Owners - Cylinder Deactivation Question
02-08-2021, 08:25 AM
#11
I have a 19 currently but came here cause I am curious to hear about this in the 21's.
I used to have an 08' grand prix GXP which had the LS4 v8. That engine had cylinder deactivation before it got to the trucks. It was notorious for burning oil because each time it would activate/deactivate it would cause oil mist to vent up into the intake. Many people, including myself actually had it tuned out because it was so bad.
So, with the 5.0's already being notorious for using more than a little oil as it is, I came here to see if anyone notices a lot of usage with this cylinder deactivation, and whether or not the 5.0 oil usage actually gets worse.
I used to have an 08' grand prix GXP which had the LS4 v8. That engine had cylinder deactivation before it got to the trucks. It was notorious for burning oil because each time it would activate/deactivate it would cause oil mist to vent up into the intake. Many people, including myself actually had it tuned out because it was so bad.
So, with the 5.0's already being notorious for using more than a little oil as it is, I came here to see if anyone notices a lot of usage with this cylinder deactivation, and whether or not the 5.0 oil usage actually gets worse.
02-08-2021, 10:36 AM
#12
Ford Dealership
As to the original question, did not notice the cylinder deactivation, if it occured.
The following 4 users liked this post by Swegner99:
02-08-2021, 10:54 AM
#13
The GMC trucks show a little icon on the dash showing it running in 4 cylinder mode...nothing like this on the Fords?
I suspect there are some waiting for the 5.0 with cylinder deact to explode...even though its been around for quite some time.
I guess they're disappointed.
02-08-2021, 11:12 AM
#14
Senior Member
I don't suppose any of you know if it can be turned off like the stop start feature. Can you?
As for the oil consumption question, you know the specification has changed to 5W30. That should make the difference.
As for the oil consumption question, you know the specification has changed to 5W30. That should make the difference.
02-08-2021, 11:17 AM
#15
Not that I would want it off as it's not a bad thing, but definitely would be nice to have the option.
02-11-2021, 08:27 PM
#16
Senior Member
Pretty impressive fuel mileage on a new 5.0! . What grade of fuel were you using?
02-14-2021, 12:19 AM
#17
Anyone with a new 5.0 who are willing give an honest assessment on the new cylinder deactivation in the 2021? I'm a couple months from ordering and I will be honest, the 5.0 scares me to death. Perhaps I'm being paranoid and obviously a lot of 21's are too new to have any major problems at this point but just wanted to get a sense from the people who have them already what their thoughts are so far.
The following users liked this post:
KartRacer25 (02-14-2021)
02-14-2021, 11:13 PM
#19
Dielectrically 5w30
![[F2C]MaDMaXX's Avatar](https://www.f150forum.com/customavatars/avatar324923_9.gif){kind=avatar}
It should be 4th gen, it's power is up again, it's got cylinder deactivation, it's got an external oil pump (IIRC) and some other minor changes.
![[F2C]MaDMaXX is online now](https://www.f150forum.com/images/statusicon/user_online.gif)
02-15-2021, 12:37 AM
#20
Senior Member