Increase mpg
Member
Joined: Jan 2012
Posts: 43
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Also, if your getting 18-19 mpg with a 10th generation 5four, you should be on that Ripply's believe it or not television show. That's a record for sure. 
Perhaps there's one of those top secrete Tornada's wedgied into the intake pipe ehh ? Has to be something as spectacular as that I expect.
Perhaps there's one of those top secrete Tornada's wedgied into the intake pipe ehh ? Has to be something as spectacular as that I expect.
If this thread still has life I will report updates.
Impractical
Joined: Dec 2013
Posts: 167
Likes: 8
From: Chattanooga, TN
98 F150 5.4L E40D/4R100
Joined: Nov 2006
Posts: 28,539
Likes: 7,641
From: MI
BTW- The 4.6 and 5.4 get identical mileage, - unless there's something wrong with your truck.
I think there's a few getting their truck and volkswaagon mileage mixed up. Or the really suck at math and round up to their happy point. Peehaps everything they do is one way,- down hill ? There has to be some illogical answer for these impossible claims.
Bury it,- they're probably looking for this kind of attention anyway.
98 F150 5.4L E40D/4R100
Joined: Nov 2006
Posts: 28,539
Likes: 7,641
From: MI
Senior Member
Joined: Jan 2014
Posts: 149
Likes: 3
I am going to agree with tackle! With my speedo off 8kmh with my new tires I only noticed a 1 mpg difference it wasn't different, after calibrating the tires, gears and squat of the tires, I'm dead on GPS, and milage, even from ideling for 30 minutes a day, to only letting the truck warm up for 10 minutes a day tops I didnt notice a difference in mpg change on a calculation of 2 tanks, the difference was in decimal points. When you get that paycheck tackle, I'm looking for a new headlight and dinner switch haha
Member
Joined: Jan 2014
Posts: 661
Likes: 127
You know, now that I think about it, I did get crappy mileage way back when,- it was bad, 7 or 8 miles per gallon, so I noticed right away. That occurred right after changing my 02 sensors. I tried a set of Borg Warner's and it chugged the fuel. Funny thing, the truck ran perfect, - no difference. Had the right part numbers. Anyway, switched back to Bosch at the time and the mileage went back to 14, like flickering a switch.
If your truly want to try and increase mileage, the best you can do is run a dry air filter element (oil free). One that doesn't embed foreign matter, like say a good nano fiber element. They're cheap, -so might as well. That way the MAF will remain clean for a long period of time. You have to clean the MAF by hand, alcohol and Q-tips. Don't just hose it down w/that MAF cleaner crap lol.
Run a Motorcraft PVC valve only. It's the ONLY valve with large enough margins for this engine.
Run more efficient spark plugs, like iridium fine wire plugs.
Use Motorcraft 02 sensors, - they are much more stable than Bosch. Here's a tuning data about that, -
https://vmptuning.com/forum/showthread.php?t=825
Proper intake and exhaust, tire pressure and of course driving habits.
Most of it could be common sense. It's a damn truck!
If your truly want to try and increase mileage, the best you can do is run a dry air filter element (oil free). One that doesn't embed foreign matter, like say a good nano fiber element. They're cheap, -so might as well. That way the MAF will remain clean for a long period of time. You have to clean the MAF by hand, alcohol and Q-tips. Don't just hose it down w/that MAF cleaner crap lol.
Run a Motorcraft PVC valve only. It's the ONLY valve with large enough margins for this engine.
Run more efficient spark plugs, like iridium fine wire plugs.
Use Motorcraft 02 sensors, - they are much more stable than Bosch. Here's a tuning data about that, -
https://vmptuning.com/forum/showthread.php?t=825
Proper intake and exhaust, tire pressure and of course driving habits.
Most of it could be common sense. It's a damn truck!
Or run for cover, there's a lot **** flying here.
BTW- The 4.6 and 5.4 get identical mileage, - unless there's something wrong with your truck.
I think there's a few getting their truck and volkswaagon mileage mixed up. Or the really suck at math and round up to their happy point. Peehaps everything they do is one way,- down hill ? There has to be some illogical answer for these impossible claims.
Bury it,- they're probably looking for this kind of attention anyway.
BTW- The 4.6 and 5.4 get identical mileage, - unless there's something wrong with your truck.
I think there's a few getting their truck and volkswaagon mileage mixed up. Or the really suck at math and round up to their happy point. Peehaps everything they do is one way,- down hill ? There has to be some illogical answer for these impossible claims.
Bury it,- they're probably looking for this kind of attention anyway.
Member
Joined: Jan 2012
Posts: 43
Likes: 0
[QUOTE=Jbrew;3319360]
BTW- The 4.6 and 5.4 get identical mileage, - unless there's something wrong with your truck.
Agreed with this. Had a '98 4.6 with 5 speed. It got .5mpg better on the road but .5-1.0 mpg less in town pulling a landscape trailer.
BTW- The 4.6 and 5.4 get identical mileage, - unless there's something wrong with your truck.
Agreed with this. Had a '98 4.6 with 5 speed. It got .5mpg better on the road but .5-1.0 mpg less in town pulling a landscape trailer.