Isn't 87 minimum what the owner's manual recommends?
1FZFE fuel mileage
- Thread starter DodgeH8TER
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
- Thread starter
- #23
Follow up
I replaced plugs with NGK copper did my air filter with a wix. Started running Lucas fuel cleaner.
Decided I liked the look of 35s so I put on 35s and now I'm getting 8.9mpg. Got a fuel filter today so I'll install that's and Decided to run 87 to see if any benefits come from it. I'll inform yall on the next fill up.
I replaced plugs with NGK copper did my air filter with a wix. Started running Lucas fuel cleaner.
Decided I liked the look of 35s so I put on 35s and now I'm getting 8.9mpg. Got a fuel filter today so I'll install that's and Decided to run 87 to see if any benefits come from it. I'll inform yall on the next fill up.
mudgudgeon
Resident galah
If you aren't experiencing any pinging, running 87 is just pouring money into the tank for no gain.
Can't hurt anything but your wallet to try a tank or two.
My F150 work truck 100% runs better on 87. It pings badly on regular everytime you accelerate. With 87, I don't notice it happening at all.
What other octane are you getting?
Here it's 87, 89, 91 or something without ethanol.
I can notice a difference on mine in power when passing and pushing against a headwind running 89 vs 87, so I run 89 all the time.
mudgudgeon
Resident galah
My bad. I guess in using 89
The octane ratings are measured differently at home. I still get confused here
Yeah I thought he was telling us higher octane caused pinging. If there's a gas called regular with less than 87 it's news to this redneck.
mudgudgeon
Resident galah
Sorry guys.
I use the button in the middle of the pump
I use the button in the middle of the pump
There are a few states that run 85, that's why I asked. You also cannot buy non-ethanol in those states.
But...Sorry guys.
I use the button in the middle of the pump
But....
Why?
All you're doing is throwing away money!
mudgudgeon
Resident galah
But...
But....
Why?
All you're doing is throwing away money!
The 5.4 Triton in my F150 pings and clatters BAD!! if i use regular. Never heard anything like it.
Its fine on 89??. If i go back to regular, no dice!
Sorry to contradict, but for sure in Nevada and Montana (Idaho I'd bet) at high(er) altitude 85 is "regular." And, ethanol free is available to varying degrees. In Nevada Maverick has 87 EF. In Montana many Cennex carry 91 EF
Thanks for chiming in!
Those states I've encountered the lower octane are east of the Mississippi and usually in the northern half.
A lot of states at higher elevations have lower octane fuels they still call them Reg/Mid/Premium but they will be 2 points lower, and I know in Idaho, Washington and Montana near the big lakes you can find Ethanol free pretty easily because it is run in the boats. I kind of hate the states that think because of the elevation they can sell lower octane fuels because in my turbo truck I can make up for lack of oxygen with pressure. haha
OrangeCrusher
SILVER Star
I'm based in Utah and also putting in 85 octane "regular". No issues with pinging etc.
Air pressure is 15% lower than sea level. Regarding turbo and elevation, depends on the design - with my other rig, a turbo diesel, I see that boost targets are also reduced at this elevation and above a certain RPM, presumably to prevent turbo overspeed.
I'm getting 10mpg pretty consistently no matter what I do. Only exception being rock crawling or sand where it may be lower.
Air pressure is 15% lower than sea level. Regarding turbo and elevation, depends on the design - with my other rig, a turbo diesel, I see that boost targets are also reduced at this elevation and above a certain RPM, presumably to prevent turbo overspeed.
I'm getting 10mpg pretty consistently no matter what I do. Only exception being rock crawling or sand where it may be lower.
I just checked my "economy."
16.4 mpg, about 80% highway, the rest suburban driving. Completely stock except 285/75 KO2's. Around town only I'll get a whopping 12-13mpg. Best ever was a hair under 19 with reasonable highway driving only.
These beasts are a lotta things, fuel efficient? Not so much
True for UT as well EDIT: @OrangeCrusher beat me to it.
@DodgeH8TER, are you factoring the different tire size into your MPG calculations?
Yes.
I multiply odometer miles by 1.049, then divide. Tested by those 10 mile odometer checks found on some interstates
IMO, pinging is detonation and isn’t ideal and could cause worse things over the long term. When I was younger, driving an old Subaru GL sedan… if pinging was caused using 87…. It would disappear using 91 or 93. A retailer in Ohio (Sheetz) sells 90 octane ethanol free gasoline and I run that sometimes in my motorcycle.
I travel 30 miles one way to work every morning between 80 -85 mph I get 12.5 to 13 mpg 280,000 miles 3 inch lift 37s 4.88
