No I don't think it will, but why not use the couple of cents to make sure you get the most performance from the car and maybe a little better mileage.
Take care of the car and it will take care of you.I bought this car and hope to drive it till it dies, so my biggest concern is just that the engine won't be damaged using regular fuel.
Depends on the area I'm sure, but here in GA, all octanes, 'may have up to 10% ethanol', according to the mandatory sticker at every pump that sells it.The difference between regular and 91/93/94 would be that the higher octane burns more efficiently and your car will feel more lively. You probably should use premium because lets face it...if you cannot afford the $8 a tank you probably shouldn't have bought the car.
Also regular fuel uses 10% Ethanol which is actually corrosive. There is a big push right now from governments for E15 (15% Ethanol) which would be even worse. All new cars are fine but in my honest opinion, stay away from Ethanol if you can.
In Canada, Shell doesn't have ethanol in their 91oct. Petro Canada has 10% in their 94oct and Esso I believe doesn't use ethanol in their 91oct.Depends on the area I'm sure, but here in GA, all octanes, 'may have up to 10% ethanol', according to the mandatory sticker at every pump that sells it.
Understand fuel and you can make your best choice. Premium fuel has no power adding benefit. But it allows the engine to make changes that make more power. Premium fuel burns at a slower rate so the computer can advance timing which increases power. The additives are the same at a gas station weather you use 87 or 93.Having never owned a vehicle that requires premium fuel before, how important is using premium in the Fiesta ST.
The brochure says that premium is recommended for ecoboost. The Ford sales guy told me that that using regular is fine for the engine, and you'll only lose out on about 7% of the boost power. Does anyone know if this is true or not? Will using regular fuel damage the engine over time?
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Really the difference between a tank of regular and premium is MAX $7-8. If you aren't willing to take that "hit", maybe this isn't the car for you.Having never owned a vehicle that requires premium fuel before, how important is using premium in the Fiesta ST.
The brochure says that premium is recommended for ecoboost. The Ford sales guy told me that that using regular is fine for the engine, and you'll only lose out on about 7% of the boost power. Does anyone know if this is true or not? Will using regular fuel damage the engine over time?
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I disagree. There are no 'rules' as to what car people should drive. If the OP wants to run 87, the car can handle it and was designed to. While it isn't the fuel I would prefer to run on my commute, it definitely makes sense to save the money during the week of a long steady-state commute and then fill up with premium for some performance driving.Really the difference between a tank of regular and premium is MAX $7-8. If you aren't willing to take that "hit", maybe this isn't the car for you.
On the other hand though, if you feel like you are wasting that money...look elsewhere. Most people spend WAY more than that on coffee or eating out for lunch meantime between fill ups.I disagree. There are no 'rules' as to what car people should drive. If the OP wants to run 87, the car can handle it and was designed to. While it isn't the fuel I would prefer to run on my commute, it definitely makes sense to save the money during the week of a long steady-state commute and then fill up with premium for some performance driving.
Full-disclosure: I won't run anything but Shell 93 V-Power. Personal preference.
The difference is the resistance of the fuel to ignition, not efficiency. Higher octane rating means the fuel is more difficult to ignite. This allows for ignition timing to be more aggressive which is where the extra power comes from.The difference between regular and 91/93/94 would be that the higher octane burns more efficiently and your car will feel more lively. You probably should use premium because lets face it...if you cannot afford the $8 a tank you probably shouldn't have bought the car.
Also regular fuel uses 10% Ethanol which is actually corrosive. There is a big push right now from governments for E15 (15% Ethanol) which would be even worse. All new cars are fine but in my honest opinion, stay away from Ethanol if you can.
The higher octane is more efficient. When the spark ignites it, it takes longer to burn and it burns more even, creating less waste and hence being more efficient.The difference is the resistance of the fuel to ignition, not efficiency. Higher octane rating means the fuel is more difficult to ignite. This allows for ignition timing to be more aggressive which is where the extra power comes from.
If you will be lugging the engine along on highway commutes or just low load city driving, there is little need for 91/93 fuel over 87. Now, that's not to say that some fuel manufacturers put less additives in their lower grade fuels, but that is mostly tit-for-tat. The FiST (and pretty much all modern cars to this point) have the proper engine monitoring systems in place that will adjust the timing based on the information logged from the sensors.
I wouldn't worry about low ethanol content fuels. Most manufactures accounted for up to E20 fuels in the design of their fuel systems since the early 90's. The fuel systems that have trouble with ethanol content are the pre-90's systems that didn't have ethanol content in mind, they are mostly at risk due to lean conditions and water absorption than they are to corrosion.
Mythbusting Octane, The Truth About GasolineThe higher octane is more efficient. When the spark ignites it, it takes longer to burn and it burns more even, creating less waste and hence being more efficient.
Yes! Please! That means more for me!I just say stay away from ethanol if you can .
Hey I love the idea behind it. Ethanol helps drive up our Corn prices! They have not been this good in a LONG time! I am not saying that ethanol is bad, it just isn't as efficient. I know some guys running some crazy numbers on corn...crazy stuff!Yes! Please! That means more for me!