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Old 07-29-2015, 09:32 AM   #51
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Originally Posted by Wolverine 1945 View Post
Ford back a few years ago said that using Premium was a waste of money,,, in any of there motors where 87 octane was recommended ???
Maybe that is no longer true ???
Depends on the motor.
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Old 07-29-2015, 05:08 PM   #52
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After the return trip from VA to Buffalo, I used 93 octane and I still got 2.3 mpg more (from what the fuel economy meter read out says). The temps were in the 80s to the 90s the whole trip and the trucks gages were perfect. I did like the performance of the truck with the higher octane (imho). For the extra 20 - 30 centers per gallon I think I will use it when towing.
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Old 07-29-2015, 06:13 PM   #53
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See my sig for TV and TT specifics. We get about 10 mpg in the hills and 11.5 mpg on the flat roads towing in tow haul at 65 mph. My rig is a towing beast for the following reasons: 1) the motor is tuned by 5 Star and was dynoed at 425hp and 440 tq; 2) I run LT tires at 80 psi when towing; 3) and finally I am running a Wagner intercooler.

The biggest issue with the EB is intake temps. This has a huge affect on hp and tq. I monitor the engine using an Aeroforce Interceptor gauge. Before my engine mods, the intake air temperature would run about 30 degrees higher than ambient temp during the summer. Now my intake air temp runs about 8 degrees higher than ambient. There is a huge difference in low end torque.
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Old 07-30-2015, 08:32 AM   #54
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Teamfour,

What made the difference in intake temps, the intercooler?
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Old 07-30-2015, 09:17 AM   #55
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Shell Premium got me the best bang for mileage and performance in both my 11 and 13 Ecoboost when hauling.
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Old 07-30-2015, 12:23 PM   #56
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As they add more gears to trucks, they shift more to balance power with fuel economy

My ram with 8 speeds uses 3 or 4 gears when going up and down hilly areas. Trans temp and engine temp never changes

Our old Yukon with a 4 speed would stay in 3rd on all but the steepest hills when it would go to second gear and scream!!

The ram goes from 2000 rpm on a flat road to 4500 rpm on steeper hills

So far I love the power and gears. I just wish it had a slightly stouter suspension

Linc
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Old 07-30-2015, 02:00 PM   #57
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Quote:
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Teamfour,

What made the difference in intake temps, the intercooler?

The intercooler.
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