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Problem/Fix for better fuel mileage EcoBoost

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Old 03-08-2017, 07:13 PM
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Originally Posted by Tothemax
Its ok. It happens. People around here recommend changing your plugs every 30k with the ford SP534's and gap them too .030

Also drill the weep hole in your CAC.

This has been discussed numerous times in other threads and both are a must do.
Sorry to sound like a green horn but, what's a CAC?
Old 03-08-2017, 07:40 PM
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Originally Posted by AirMack
Sorry to sound like a green horn but, what's a CAC?
Charge air cooler , your intercooler
Old 03-08-2017, 08:20 PM
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Wouldn't that cause a vacuum loss?
Old 03-08-2017, 09:13 PM
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No.
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Old 03-09-2017, 09:28 AM
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I've got a 2014 Tremor with 4.10 gears, and I cant do any better than about 18ish at 70mph on the highway. I'm averaging 15.6 according to my fuel app at around 50/50 city/highway. Of course, I don't baby it much. The one tank I did, I think I got 16.5, so to me, 1mpg isn't worth the lack of fun. It's a truck, I don't expect any better.


For reference, my old 2013 RCSB 5.0 with 3.55 gears had a lifetime average of 16.8 over the 3 years I had it when I got rid of it.



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