osris

Where are you guys getting your plugs from? Can you insure they are all gapped the same?

13LariatEco

You can pick them up at Autozone, Advanced or the dealership. Just make sure you check the gap before install with a simple gap tool.

maplelakeduckslayer

Rock Auto is best price I've found, no one local stocks them except the dealer and they are at least twice as much

osris

Thanks guys, I wasn't sure if you needed to get them from a performance store because they were "modified" or what. I haven't had a performance gasser for 15 years so I just wanted to make sure I did it right.

Scenaria

I bought a 2013 platinum with 50k miles on it. I knew the plugs were never changed. Replaced them tonight. The ones pulled were between .038 and .040. The ones I put in were set at .032.

I noticed my mpg going up from 17.1 avg to 19. This was after driving it the same rout to work as usual.

Is the increased mpg pretty typical?

vozaday

If you had a miss then yes. Every time a cylinder misses you have just wasted that amount of fuel with no power gain. So depends on how bad the miss was as to how much wasted fuel.

Glad to see it made that much of a difference. I have seen a lot of posts about people who didn't even know their truck was performing differently until they changed the plugs and said it really woke up the truck.

woody3

I have seen rumors, hints, that the 2015 has fixes for both the CAC condensation problem and the DFI intake valve carbon build-up problem.


The 2015, like the Lexus GS has done for years, uses SFI for low HP cruise, which of course also serves to "wash" the back side of the intake valves.


DFI is reserved for boost mode.


The CAC now has a vane/shutter system that automatically closes and blocks cooling airflow through the CAC during "off-boost" driving.


The question becomes, will prior purchase Ecoboost owners be offered a retrofit kit??


One could see that retrofitting the vane/shutter system to older F150 Ecoboost trucks might be entire possible, POC!


SFI....?? NOT!


But, wouldn't a simple single throttle injector also solve the problem, PLUS keep the entire throttle body clear of EGR deposits?


Ford... Listening!

woody3

Apologies all around..


Looks like I spoke to soon..... wishful thinking I guess.


Read an engineering white paper that seemed to say these improvements would be in the 2015 F150 Ecoboost. Link no longer works so I guess Ford had it removed.

vozaday

As far as I know the shutters are a go.

The dual fuel system is in the new ecoboost for the Ford GT and the Raptor.

It would be much more expensive to retrofit these back then to just by a can.

The dual feed system would be awesome though, just think of the power you could get out of it.

woody3

The dual fuel system isn't about power, but keeping the gunk
from forming on backside of the intake valve.