Props for clarifying, that's great news it's on regular gas!
the amount it went down fits into the "real world" mpg I got with my 2012 3.31 v6 6mt.
Ah, I missed that. OK, if they're still claiming that premium is needed to achieve peak HP, then that means premium gas will also get you better mileage than what they're listing here. With premium, you would probably see numbers on the GT, for example, that were at *least* as good as last gen.
I read this in another article( comment post on left lane article), not sure of accuracy,:
How it's it less effecient with a gain of 35 hp and a small gain in weight with only 1mpg drop even if rated with the 3.73. It's pretty damn good the way i see it especially being a v8
My 14 Escape 2.0 Eco is the exact opposite. I get worse gas mileage with 93 than I do with 87.
I also believe from what I have read in this thread the EPA data is based on 87. Every vehicle I have ever driven has gotten much better mileage with 93 whether it was an Escort, Mark 8 or a new Jeep. Everyone jumped down my throat saying that octane doesn't effect mileage but this is calculated with a calculator using the same pump.
Again, in my personal experience with today's crappy gasoline that is very inconsistent I always run 93 and I plan on running a good fuel octane booster because I have no faith in what is coming out of the pump.
My friend burnt up his 03 Cobra running 93-94, it only takes one bad batch. He runs additives all the time now, it was a $10K lesson for him. He had a mild tune (not on the edge)
Also an engine builder friend of mine just posted pictures of pistons he pulled out of a "Ford" race engine with 40 hours on them. They look brand new, runnning leaded race fuel. When this car ran in ALMS with E85 the results were not so pretty. ---- so slightly off topic but I'm getting a 435HP V8 for $34K, it's getting expensive gas and expensive additives. I wouldn't have bought the car if I couldn't afford the gas :shrug:
It gained 15 hp, not 35.
Exactly.... the case with my truck, I can run higher octane but to gain the benefits you will actually have to run it a couple tanks to allow the ecu to adjust to the fuel... many people think that just switching the fuel it will be better this they complain that they got even worse mpg... even my truck it got worse but I only put one tank of it in but 89 octane then the fuel prices jumped again... even then though, the 5.4 recommended fuel is 87 if I remember correctly... it would not make that much diffe re nce using the higher octane except for the cleaner running aspect of it. It takes as much as 500 miles for the ecu to make adjustments to a change of fuel, fuel ratios, maf sensors... so actually, some days might be shitty, other days good ... an ambient temperature year round would be best but that will never happen around here
I also believe from what I have read in this thread the EPA data is based on 87. Every vehicle I have ever driven has gotten much better mileage with 93 whether it was an Escort, Mark 8 or a new Jeep. Everyone jumped down my throat saying that octane doesn't effect mileage but this is calculated with a calculator using the same pump.
Again, in my personal experience with today's crappy gasoline that is very inconsistent I always run 93 and I plan on running a good fuel octane booster because I have no faith in what is coming out of the pump.
My friend burnt up his 03 Cobra running 93-94, it only takes one bad batch. He runs additives all the time now, it was a $10K lesson for him. He had a mild tune (not on the edge)
Also an engine builder friend of mine just posted pictures of pistons he pulled out of a "Ford" race engine with 40 hours on them. They look brand new, runnning leaded race fuel. When this car ran in ALMS with E85 the results were not so pretty. ---- so slightly off topic but I'm getting a 435HP V8 for $34K, it's getting expensive gas and expensive additives. I wouldn't have bought the car if I couldn't afford the gas :shrug:
I don't know if that's the case with direct injection motors. I believe they may adjust on the fly.
I meant 15... had 35 stuck in my head because of the 435..lol but still 15 gain is still good
That is incorrect.... the ecu still uses the maf sensors, temperature, barometric pressure and overall efficiency of the fuel along with the o2 sensor... with all this, the ecu will adjust fuel metering and also air to allow for a more efficient fuel burn.... if it gets a bit rich, the o2 sensors pick that up and then the ecu adjusts accordingly.... it will never be on the fly
