Premium, or not to Premium? - Ford Mustang Forum
 
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post #1 of 8 (permalink) Old 02-24-2012 Thread Starter
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Premium, or not to Premium?

Hi guys, it's me again. Well, after a long drive to go pick up the Bullitt and bring it back home, it's time to fill her up. Does the 01 Bullitt require premium or can it use regular? I did a search but nothing turned up relevant to an 01.

Thanks again,
Patrick M.

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post #2 of 8 (permalink) Old 02-24-2012
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Does it say on the dash to use premium only?

If not, use 87.

post #3 of 8 (permalink) Old 02-24-2012 Thread Starter
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I don't think so. My last car required premium but said it no where except the drivers manual. In this case, I don't have one.

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Mods
Jegs Off-Road H-Pipe
MGW Short-Throw
K&N FIPK
S&R Lowering Springs
Flowmaster Super 10's
Exedy Mach 400 Stage 2
Custom Tuned by Performance Evolution
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post #4 of 8 (permalink) Old 02-24-2012
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The bullitt does not say on the dash that it needs premium... but the mechanic at my local ford dealer said it was a good idea to run at least mid grade if not premium... I fill up with premium if I am empty and if I have half a tank just fill it up with regular!

2001 Mustang Gt Bullitt, 105,000, mostly stock :nogrinner, 15% tint, led tail lights, Deep Dish Wheels, Nito 555's, shorty antenna, Head Turner.

Mac Off Road Chambered H Pipe, Magnaflow Magnapacks, SCT custom tuner, C&L Cold Air Intake, Exedy Mach 400 stage 2 clutch, Ford Racing 4.10 gears, Under-drive pullies, modded IAC.
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post #5 of 8 (permalink) Old 02-24-2012 Thread Starter
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Thanks for the input.

Mods
Jegs Off-Road H-Pipe
MGW Short-Throw
K&N FIPK
S&R Lowering Springs
Flowmaster Super 10's
Exedy Mach 400 Stage 2
Custom Tuned by Performance Evolution
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post #6 of 8 (permalink) Old 02-24-2012
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Run the lowest grade octane possible without any pinging, or early detonation. I don't see any benefit to running premium, especially with prices climbing like they are.

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post #7 of 8 (permalink) Old 02-25-2012
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Here are some results from a search. But use what is spec'd for your car.


The Federal Trade Commission, in a consumer notice, emphasizes: "(I)n most cases, using a higher-octane gasoline than your owner's manual recommends offers absolutely no benefit. It won't make your car perform better, go faster, get better mileage or run cleaner."

Premium, in fact, sometimes is worse fuel than regular. It resists knock because it's harder to ignite than lower-octane fuels. As a result, some engines won't start as quickly or run as smoothly on premium, notes Gibbs, the SAE fuel expert.

The only modern engines that should really need premium are those with superchargers, which force-feed fuel into the cylinders. "You're driving along and just tramp the gas and the knock sensor cannot sense the knock fast enough in some cases," because the supercharger boosts pressure so fast, says Bob Furey, chemist and fuels specialist at General Motors.

The main advantage of premium-grade gas is that it allows automakers to advertise a few more horsepower by designing and tuning engines to take advantage of premium's anti-knock properties. But auto engineers generally agree that if you use regular in a premium engine, the power loss is so slight, most drivers can't tell.

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post #8 of 8 (permalink) Old 02-25-2012
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I got alot of pinging with regular fuel in my bullitt... but I believe it has some internal work done to it... If it was me I would try medium grade and see if you get pinging when you really get on it... if you dont have anything done to it you will be fine... its kinda one of the trial and error situations

2001 Mustang Gt Bullitt, 105,000, mostly stock :nogrinner, 15% tint, led tail lights, Deep Dish Wheels, Nito 555's, shorty antenna, Head Turner.

Mac Off Road Chambered H Pipe, Magnaflow Magnapacks, SCT custom tuner, C&L Cold Air Intake, Exedy Mach 400 stage 2 clutch, Ford Racing 4.10 gears, Under-drive pullies, modded IAC.
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