87 Ethanol Free or 93 Premium 10% Ethanol
05-20-2019, 10:54 PM
#11
Senior Member
Use the higher octane fuel. The truck will thank you with better performance and fuel economy.
If strictly analyzing it based on cost, go with 87 with 10% ethanol. However, at that point, you would also want to go with the 3.3v6. I've never understood people who go with a performance engine option and then feed it low octane fuel.
If strictly analyzing it based on cost, go with 87 with 10% ethanol. However, at that point, you would also want to go with the 3.3v6. I've never understood people who go with a performance engine option and then feed it low octane fuel.
05-20-2019, 11:25 PM
#12
Senior Member
Living at altitude our options are 85, 87, and 91. We also get E10 fuels all year around although recently Maverick stations now offer alcohol free 87.
The altitude certainly plays a roll but I notice zero difference in performance or mileage. (Never tried 85.)
The driver’s ability to control that vertical pedal on the right is about the only thing that plays a roll on mileage. My teenaged son borrows the truck and I get it back with a 20% reduction in fuel economy.
The altitude certainly plays a roll but I notice zero difference in performance or mileage. (Never tried 85.)
The driver’s ability to control that vertical pedal on the right is about the only thing that plays a roll on mileage. My teenaged son borrows the truck and I get it back with a 20% reduction in fuel economy.
05-21-2019, 08:12 AM
#13
Living at altitude our options are 85, 87, and 91. We also get E10 fuels all year around although recently Maverick stations now offer alcohol free 87.
The altitude certainly plays a roll but I notice zero difference in performance or mileage. (Never tried 85.)
The driver’s ability to control that vertical pedal on the right is about the only thing that plays a roll on mileage. My teenaged son borrows the truck and I get it back with a 20% reduction in fuel economy.
The altitude certainly plays a roll but I notice zero difference in performance or mileage. (Never tried 85.)
The driver’s ability to control that vertical pedal on the right is about the only thing that plays a roll on mileage. My teenaged son borrows the truck and I get it back with a 20% reduction in fuel economy.
05-21-2019, 01:49 PM
#14
Senior Member
Use the higher octane fuel. The truck will thank you with better performance and fuel economy.
If strictly analyzing it based on cost, go with 87 with 10% ethanol. However, at that point, you would also want to go with the 3.3v6. I've never understood people who go with a performance engine option and then feed it low octane fuel.
If strictly analyzing it based on cost, go with 87 with 10% ethanol. However, at that point, you would also want to go with the 3.3v6. I've never understood people who go with a performance engine option and then feed it low octane fuel.
http://www.fuelly.com/car/ford/f-150...cab2018/795041
05-21-2019, 02:21 PM
#15
Senior Member
Curious what would be better for the truck. I have a 19 F150 3.5L Ecoboost.
I have read the countless threads before out 87 is fine, manual says 91 recommended. Some threads on Ethanol vs non ethanol.
I can get 87 Ethanol Free for $2.629
I can get 93 Premium with up to 10% ethanol for $2.59
What would yall do and why?
I have read the countless threads before out 87 is fine, manual says 91 recommended. Some threads on Ethanol vs non ethanol.
I can get 87 Ethanol Free for $2.629
I can get 93 Premium with up to 10% ethanol for $2.59
What would yall do and why?
anyway the fuel system was designed with E15 in mind - and the higher octane rated fuel will let the system burn as optimal as possible. running cooler overall (as in at the head of the piston - not as in oil or coolant temp) and it gets the most efficiency out of the mix. Basics - you'll spend less, get more mpg or equal, and the ethanol content doesn't hurt the vehicle.
I hate ethanol in fuel for a lot of reasons related to politics, the BS that is the fake corn subsidy, and some other bits but I hate even more the absolute BS that I have to pay so much more for non-ethanol fuel.
Anyway enjoy. I run 93 octane in my F150 when the Outside Air Temp (OAT) reaches 94 or higher. SO I'm about there now.
05-21-2019, 03:08 PM
#16
Senior Member
I can assure you that altitude plays a factor even on turbo charged engines but that’s a different discussion. But you did read that I’ve never ran 85 didn’t you?
05-21-2019, 04:28 PM
#17
Use the higher octane fuel. The truck will thank you with better performance and fuel economy.
If strictly analyzing it based on cost, go with 87 with 10% ethanol. However, at that point, you would also want to go with the 3.3v6. I've never understood people who go with a performance engine option and then feed it low octane fuel.
If strictly analyzing it based on cost, go with 87 with 10% ethanol. However, at that point, you would also want to go with the 3.3v6. I've never understood people who go with a performance engine option and then feed it low octane fuel.
Because when you have a big tow or whatever coming up, you can just put higher octane in it? Bit harder to do an engine swap for that camping trip
Also, for the Lariat and above guys, the ecoboost or 5.0 isn't a performance engine option, it's the standard base
Last edited by blkZ28spt; 05-21-2019 at 04:57 PM.
05-21-2019, 10:30 PM
#18
I was running regular, but had to change to premium. Truck was pinging like crazy, even at light throttle. It was extremely annoying and embarrassing. Unfortunately, it's $0.60/gal difference here, but the alternative was plunking 13 grand to replace the truck with a Macan Sport Edition, and that money buys a lot of premium fuel. Ha ha. Another reason to trade was the infuriating amount of rattles, but was able to fix them all, including the most annoying that gave me hell to find: the moonroof one. At any rate, the truck didn't feel much peppier with premium at light to medium throttle, but noticed with regular fuel, boost gauge only went about halfway. Once with full premium (after 3 fill-ups, due to leftover regular in the tank), gauge goes to max boost (even with just 91 here), so a significant power difference under heavier throttle (about 2/3s and up). Will reluctantly keep running premium, since I know dealers won't do crap for the pinging issue. Not a huge deal. Once I figured how many full tanks I'd have to use to break even with that trade (602, or 21,672 gallons, or 369,000 miles), not going to think about the extra expense anymore. Ha ha.
05-22-2019, 07:31 AM
#19
Senior Member
I'm cheating by blending E85 with 87 octane (E30) for a cheap premium fuel alternative since 93 octane is now $3 a gallon in my area.
05-22-2019, 09:33 AM
#20
I was running regular, but had to change to premium. Truck was pinging like crazy, even at light throttle. It was extremely annoying and embarrassing. Unfortunately, it's $0.60/gal difference here, but the alternative was plunking 13 grand to replace the truck with a Macan Sport Edition, and that money buys a lot of premium fuel. Ha ha. Another reason to trade was the infuriating amount of rattles, but was able to fix them all, including the most annoying that gave me hell to find: the moonroof one. At any rate, the truck didn't feel much peppier with premium at light to medium throttle, but noticed with regular fuel, boost gauge only went about halfway. Once with full premium (after 3 fill-ups, due to leftover regular in the tank), gauge goes to max boost (even with just 91 here), so a significant power difference under heavier throttle (about 2/3s and up). Will reluctantly keep running premium, since I know dealers won't do crap for the pinging issue. Not a huge deal. Once I figured how many full tanks I'd have to use to break even with that trade (602, or 21,672 gallons, or 369,000 miles), not going to think about the extra expense anymore. Ha ha.