nihilus

Not a lot of these trucks have 36 gallon tanks. Please post DTE for your truck when you fillup even if you have a 26 gallon tank. Thread Here:

https://www.f150forum.com/f118/longe...95043/index17/

Looking to see if anyone of you 3.5 guys have a "theoretical" 1000 mile truck

Hard Learner

Have almost 14k miles on my truck about to go in for my second oil change. Have to say really zero complaints. Love my truck, would always like to go faster/more hp. But many trucks to come eventually. Hitting right at 19.8-20.2 MPG. No level or tires yet.

tsigwing

A sustained 28mpg's would be awful tough. Guess if you got on the highway at 55 and never stopped. Good luck with that.

akrick

My truck arrived this past Thursday. Unfortunately the door handle was damaged in transit. Because its a sport model they had to order a new handle. It will be at least a week

Still wondering if anyone changed the oil themselves, if the 3.5 NA has that big plastic oil pan plug like the 2.7

nihilus

All the other engines have gotten in the 900+ club with proven pics. At $1.80/ gallon now, it is not a huge deal, just kinda fun. I believe the 36 gallon tanks are a bit bigger than 36 gallons as well. Someone said it calculates the average from the last 500 miles and then multiplies by 36 gallons or whatever you manage to put in the tank. Guess you need declining elevation and a good tail wind on a long highway trip to get those numbers.

JTM86

...while traveling at 51 mph, or whatever the ideal engine load vs. distance being covered speed is for the respective engine type. Someone should calculate the fuel consumption vs. speed for the different engines because I'm guessing the 3.5 N.A. would likely be the winner for highway speed travel.

I'm sure the Ford engineers calculated this all out, which is why it works, but it looks like the 3.5 N.A. is able to run in a mpg sweet spot of just enough displacement with the variable cam timing vs body weight and drag. The 2.7 has to dip into the boost to maintain 75 mph (at least in 4x4 guise), and suffers the correspondingly higher fuel consumption.

I get annoyed when people chime in with "oh my 2.7 gets 24 mpg on the highway all the time" and then you find out that their version of highway speed is 62 mph. My 3.5 N.A. returns an honest 22 mpg, consistently, with the cruise set at 75 mph, and I would love to see a 4x4 2.7 top that.

JTM86

Which isn't to take anything away from the study you're doing, it's really cool. Someone from the 3.5 N.A. crew just needs the patience to drive that slow for a few hundred miles now!

akrick

I did a lot of research regarding fuel milage on sites like Fuelly.com and consistanly the fuel milage averages seemed to support what I also read in many of the reviews including consumer reports. The EB simply do not deliver the advertised fuel milage in real world driving.
2.7 EB most averaged in the low 18's
5.0 in the mid 16's
3.5 NA ( flex on Fuelly) mid 19's
The fleet dealer at the locale Ford dealership told me that many of his customers with EB engines are not happy with their fuel milage.

tsigwing

Well, they certainly CAN. Mine will if I let it.

Hard Learner

Has anyone put a cold air intake on their NA 3.5L yet? Just bought one from Roush. Excited to get it put on loved my old one I put on my last truck from AFE.