Regular or premium

[1955moose]

Some day, no time soon they'll figure out how to get a near 6,000 pound vehicle down the road at an effortless 130 mph, and return 25 mpg on regular fuel. The last 7-10 year expeditions do all right. Theirs going to come a time real soon that our cars and trucks are going to look and drive like George Jetsons foldable briefcase car. Enjoy your behemoths, and their 8-15 mpg while you can. I grew up during an era when you could buy 102 leaded octane gas. If you had a trick enough 11.5 to 1 compression car, you needed it. Ah the good old days! Compared to now they were that good. At least we could work on 90 percent of everything!

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[JExpedition07]

Some day, no time soon they'll figure out how to get a near 6,000 pound vehicle down the road at an effortless 130 mph, and return 25 mpg on regular fuel. The last 7-10 year expeditions do all right. Theirs going to come a time real soon that our cars and trucks are going to look and drive like George Jetsons foldable briefcase car. Enjoy your behemoths, and their 8-15 mpg while you can. I grew up during an era when you could buy 102 leaded octane gas. If you had a trick enough 11.5 to 1 compression car, you needed it. Ah the good old days! Compared to now they were that good. At least we could work on 90 percent of everything!

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GM just redid the 5.3 and 6.2 and they now have V2 mode with completely variable displacement for 2019...crazy. they haven't released HP and Torque figures. i'd be disabling that AFM ASAP. I do enjoy driving the bohemith.

 

[JExpedition07]

i have no skin in the game. i could give two ***** what people online think of me or my opinions. i would ABSOLUTELY admit it if something i bought was a dud.

that being said...... 3.5 EcoBoost is a hell of a motor!!!! I have beat on my latest harder than most will beat them in a lifetime. 60,000 HARD miles in two years!!!!! I have ONLY changed my oil. It is the strongest, most reliable motor i have ever owned. there are millions more just like me. i have several dozens friends and tradesman who do the same. most with well over 100,000 miles.

keep in mind, they sold 894,000 f150s last year alone!!!! this was double the closest competitor. the more of something there is, the more likely you will hear something negative.

no denial here, just real world first hand experience from someone who knows more than your average joe about vehicles.

if you are not buying a new expedition because of what you stated, you are doing yourself a major disservice.

only 60k? no vehicle should have problems at 60k for what they charge today!

 

[edizzle]

thats 30k per year! double to triple the average mileage. and not an ounce of trouble. not a trip to the service center!! thats all i got, but that aint bad!!

 

[rjdelp7]

i have no skin in the game. i could give two ***** what people online think of me or my opinions. i would ABSOLUTELY admit it if something i bought was a dud.

that being said...... 3.5 EcoBoost is a hell of a motor!!!! I have beat on my latest harder than most will beat them in a lifetime. 60,000 HARD miles in two years!!!!! I have ONLY changed my oil. It is the strongest, most reliable motor i have ever owned. there are millions more just like me. i have several dozens friends and tradesman who do the same. most with well over 100,000 miles.

keep in mind, they sold 894,000 f150s last year alone!!!! this was double the closest competitor. the more of something there is, the more likely you will hear something negative.

no denial here, just real world first hand experience from someone who knows more than your average joe about vehicles.

if you are not buying a new expedition because of what you stated, you are doing yourself a major disservice.

I would not buy one, because you beat one and it did not fail. The are plenty of people who had timing chain problems. That kind of, out of warranty stuff, is a turn off. I would hope a new engine would be problem free, in its first two years. Ford only sold, so many, because of EB rebate on the F150. I had read many on this forum, unhappy about the EB, being only engine choice in the EXpy.

 

[edizzle]

I would not buy one, because you beat one and it did not fail. The are plenty of people who had timing chain problems. That kind of, out of warranty stuff, is a turn off. I would hope a new engine would be problem free, in its first two years. Ford only sold, so many, because of EB rebate on the F150. I had read many on this forum, unhappy about the EB, being only engine choice in the EXpy.

you are not doing the math right! in Jun 2016, ford had sold 1,000,000 ecoboost f150s!!! there are over 1.5 million 3.5 ecoboosts on the road!! the tiny number of complaints you have heard and read online dont amount to anything. literally nothing. there were much larger problems with the 4.6 and 5.4l with cam phasors, blowing spark plugs, breaking sparkplugs, etc. you know the only thing you will read about is the negative. that goes for anything. the people with issues are going to be much more vocal than the people who are satisfied. if you have found 1,000 examples of dissatisfied people, that is .06 percent of the number of engines on the road!!!! DO THE MATH!!!

edit; my numbers are way off. there is WAY mor than 1.5 million of them on the road. i didnt realize how many other vehicles had the 3.5 EB in them.

 

[rjdelp7]

you are not doing the math right! in Jun 2016, ford had sold 1,000,000 ecoboost f150s!!! there are over 1.5 million 3.5 ecoboosts on the road!! the tiny number of complaints you have heard and read online dont amount to anything. literally nothing. there were much larger problems with the 4.6 and 5.4l with cam phasors, blowing spark plugs, breaking sparkplugs, etc. you know the only thing you will read about is the negative. that goes for anything. the people with issues are going to be much more vocal than the people who are satisfied. if you have found 1,000 examples of dissatisfied people, that is .06 percent of the number of engines on the road!!!! DO THE MATH!!!

edit; my numbers are way off. there is WAY mor than 1.5 million of them on the road. i didnt realize how many other vehicles had the 3.5 EB in them.

Ford had issues with 4.6l cracked plastic intakes and 5.4l ejecting plugs and ticking phasers. Many occurred, years later, out of warranty. Based on there track record, I have doubts the EB will be different. Look up 3.5l timing chain rattle/check engine light. My local junk yard had a turbo sitting on the counter. I asked about it, he said they get calls for them all the time. I think your over stating, with tiny number of complaints. How can you possibly know? The first batch have only been out of warranty a couple of years.

 

[JExpedition07]

The 5.4L Triton is a very strong engine, 2 Valves were the best and less complicated before VCT. In 04 they got a bit more complex but still a good motor. It’s a strong running cast iron block V8. There are probably 10-15 times the number of modular V8s out there than ecoboosts, hence a lot more customers to complain. Timing parts are a relatively small piece of the puzzle on modern engines. I don’t know anyone who has actually had to do them on their 5.4L. The 3.5 has been prone to timing issues but that happens on mass produced engines. We are way off topic now so I’m going to crawl back into my cave .

 

[1997SCEBFEX]

'97 5.4L Boosted. Run premium when severe duty (timber roads during hunting season and prep times or long distance) hauling to prevent detonation. Manufacturer's data and owner's manual recommends it. Just like putting ice in the aftercooler tank, only for severe use.
If I keep my foot out of it for everyday driving, '87 octane seems to work just fine

 

[K9 Handler]

I run premium and do a lot of interstate driving hauling working K-9's to sites. Seems to give a skosh more MPG.

Anyone remember Sunoco 260? Used to run that great stuff in a Dodge van with a 440...whew

 

[ANGEL TORES]

Hello, I usually use regular but if I am towing my camper or going on a 400+mile road trip I like to use 93 octane. I didn't really look to see if I get much of a difference in mileage but I am a little old school and I like to think it makes a difference at the pumps. Hope this helps and have a good day.

 

[edizzle]

FYI, i had a 2004 with the 4.6. it blew a plug and something with the timing, phasers, etc. malfunctioned and caused the passenger side of the motor to starve for oil. that was many moons ago, so i dont remember exactly, but i do remember being pissed off!!!!! i sold it as is. i did not fix it. i did like that truck though.

 

[JExpedition07]

FYI, i had a 2004 with the 4.6. it blew a plug and something with the timing, phasers, etc. malfunctioned and caused the passenger side of the motor to starve for oil. that was many moons ago, so i dont remember exactly, but i do remember being pissed off!!!!! i sold it as is. i did not fix it. i did like that truck though.

No powertrain is perfect or unscathed. Anyone can find examples of malfunctions of anything. Here is a 3.5 EcoBoost that blew a chunk out of the engine block. Both are fine powertrain s but any mass produced engine has a certain % of premature failure.

 

[Flight-ER-Doc]

Regular, usually from Costco, so Top Tier....

 

[edizzle]

Top Tier Regular!!! LOL.

 

[J_82]

I run 91 ethanol free in my Craftsman zero turn.

I Run 91% ethanol and the rest 8% percent whiskey.
Boooyahhhhh!

 

[JExpedition07]

People, this is not a new issue. Google it. Premium and Ecoboost. Ford concept is same power and better mileage. The motor has 20 to 30hp less on 87 octane. I bet salesman doesn't mention that. That means its on par with 325hp 5.4l. The mileage is also lower on 87 octane appx 1.5MPG. Ford is not new misrepresenting HP. The early 90's 5.0l Mustang was listed at 225hp. Many say it was actually closer to 300hp. The lower rating was to keep insurance rates, on the cars down.

Kind of the same here.... “at least 475 HP” ha.

 

[Wali4vr]

We’ve all got plastic tanks. But agree otherwise.

And plastic fuel lines with plastic connectors!

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[sixsix]

I run 87 in mine. It's not worth the extra $20 bucks just for the wife to bring the kids back and forth to school. I tired 93 for a couple of tanks in a row just to see and noticed no difference. Gets around 18.5 - 20mpg on either one and feels like it has the same power.

 

[bobmbx]

I run 87 in mine. It's not worth the extra $20 bucks just for the wife to bring the kids back and forth to school. I tired 93 for a couple of tanks in a row just to see and noticed no difference. Gets around 18.5 - 20mpg on either one and feels like it has the same power.

This is the normal experience of 99% of car owners. The higher octane fuels come into play (and make a difference) in high compression engines (sport cars...not sporty cars) and at high revs in any other engine. The purpose is to reduce pre-ignition. It does not add power, make your engine last longer, or make your exhaust smell good. If you're not zipping around in a Lotus or Ferrari you don't need it.