yes or not worth it
anyone using premium gas ?
sonic blue 12
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1,178 Posts
The 2001 FF is not even close to the 2012+ FF. From most users' experience, the GDI engines work better when higher octane gasoline is used.
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2,757 Posts
I feel ya (should I say I FUEL ya)
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2,757 Posts
TY 4 the input, there's always a light at the end of the road
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2,757 Posts
Ok I never drive the car over 60-70km/h
I never drove the car outside the city limits, I'm planning to go out the city this weekend and drive it at 140-160km/h
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2,757 Posts
Great! I'll do it@CunFFS13
Here is my Fuelly.com, you can have an insight about where and in what conditions the gas records were made (some 7000 km off).
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2,444 Posts
I'm convinced it's the gas that is causing stuttering etc.
Switched back to 87 since I was able to get it cheap. 93 Shell was 40c more. Screw that. It's becoming winter. lol.
Was driving around today, shuddering and lunging. Hasn't happened when I was on 93.
Switched back to 87 since I was able to get it cheap. 93 Shell was 40c more. Screw that. It's becoming winter. lol.
Was driving around today, shuddering and lunging. Hasn't happened when I was on 93.
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670 Posts
I have been saying that for a while now. I believe a lot of the DCT complaints, especially shuddering and stuttering, are misdirected and should actually be drivability issues related to 87 octane gas/ethanol.
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2,444 Posts
Sure the car is designed to run on 87. But it's clear not as efficiently. Even with the snorkel delete and intake resonator delete, it was lunging and shuddering.
With my new job, I'm going to have to see how the fuel economy is with my commute. 100mi so far and seeing ~31MPG w/ 87. Will have to see how that compares with 93.
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32 Posts
Could also be the quality of the gas: not all gas is created equal.
My old Silverado would burn anything, no problem. Could probably drop rubbing alcohol in the tank and it would purr. But one tank of Arco, and I thought I was firing on 3/6 cylinders. I don't see how people could buy crap quality gas. Sure it's cheap, but c'mon, the extra 20¢ for a good brand is worth every penny.
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My old Silverado would burn anything, no problem. Could probably drop rubbing alcohol in the tank and it would purr. But one tank of Arco, and I thought I was firing on 3/6 cylinders. I don't see how people could buy crap quality gas. Sure it's cheap, but c'mon, the extra 20¢ for a good brand is worth every penny.
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2,444 Posts
Then explain how changing from 87 to 93 I see no issues. I go back, issues. [scratch]
I don't think that Shell gasoline is cheap gas by any means. Now I see if I went down to some shady shop off of some shady road, sure. Next tank will be BP as AMEX is having an offer. 5$ credit for every 25$ worth of gas.
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32 Posts
I've gotten a bad batch of gas before. I used to hit the same Chevron every fill up, and one time I just got a bad tank. Next tank was fine. Not really anything else you can do. Maybe toss some of the Lucas fuel system cleaner in? Can't hurt anything.
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Personally, I noticed a big improvement in throttle response and driveability with 93 octane vs 87 octane. 89 runs well, but doesn't seem quite as good as 93.
My DCT is a pain in the ass and it has nothing to do with the octane. Before the last update, I could literally do nothing but just modulate the brake (not even getting completely off the brake) when slowing to ~5MPH and get the transmission to throw hissy fits as it let the clutch in and out and chattered ridiculously. Once had pretty loud grinding noises in stationary position going from reverse to drive... Clutch slipped a little from 1-2, 3-4...
Good stuff. Not related to the octane.
On 87 octane though if you're on the gas moderately and the car is reluctant to downshift, when it does so it can be a bit harsh...on 93 octane the power in the low end of the powerband seems to increase considerably and makes for less downshifting/less abrupt transitions if say, you were going up a hill trying to hold speed in that regard.
I think you are missing my point. I am not saying the gas is not making a difference for you. I am saying there is a flaw in these powertranes (or at a minimum fords specs for it) if it cannot perform correctly on gasoline that the manufacturer says the engine is intended to use.
Ford says the car will run fine all the way down to E85. They said the user will notice improved performance on higher octane. They did not say, "your car will appear to be suffering seizures of you use 87 Octane."
Sent from my Galaxy Note 2 using Tapatalk.
While not a Ford, here is what the new Silverado can do with E85 vs. 93 octane.
http://www.gmhightechperformance.com/tech/engines/1306_2014_silverado_solid_baseline/#ixzz2k9DVO8V6
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369 Posts
Iim sure someone has said it before and others who bought this car not to run 93 will say different, but engine compression ratio wise, the higher the CR means higher pump rating must be used. Correct? As the 93 is how well the gas will resist preignition.
The Mk3 Ti-VCT is like 12:1 CR? Normal engines are like 9.8:1 CR.
The Mk3 Ti-VCT is like 12:1 CR? Normal engines are like 9.8:1 CR.
Do you know what the octane of E85 is?
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