2007-01-01 14:44:49 · 14 answers · asked by 123 1 in Cars & Transportation ➔ Other - Cars & Transportation
If you use regular grade gasoline in an engine that specifies premium fuel the engine would ping and make a rattling sound upon light acceleration or when stressing the engine The engine has a sensor that detects this pinging and signals the cars computer to correct the situation. This is done by retarding the engine ignition system, thus not allowing the engine to produce maximum power and efficiency. I have no idea how emissions are affected when not using the specified fuel. It seems to me if you were to use cheaper fuel you are going to use more of it.
2007-01-01 15:11:14 · answer #1 · answered by luther 4 · 0⤊ 1⤋
Usually I like to stick with one grade of fuel. I use shell mid-grade all the time in my car and only shell premium v-power if I want to give the injectors a cleaning and clean the engine of deposits forming. There is no use in using premium if your car doesn't call for it; I've tried and there isn't any improvement.
The general idea is to select a grade of fuel that doesn't cause your engine to ping and knock. One of my older vehicles I put in regular from route 66 and citgo, largely because at the time i was in school and couldn't afford much more and the car ran great up until the day i got rid of it.
I do believe very strongly that you have to be selective in where you fill your tank as all gasolines are not of the same quality.
For instance, I would ten miles to a different gas station then walk across the street to a Clark gas station if my car ran out of gas.
2007-01-01 22:57:03 · answer #2 · answered by Changed 3 · 0⤊ 0⤋
You should know what your vehicle requires as to what grade to use,if you have the hand book it will tell you in there,if not ask a dealer in your make of vehicle.If an engine is designed to run on reg it's a waste of money to put premium in it,if it requires premium then do not use anything else,serious engine damage will occur
2007-01-01 22:53:36 · answer #3 · answered by the bear facts 5 · 0⤊ 0⤋
The higher grade fuel, the hotter it burns. So if you use all the grades at the same time it wont do anything bad to your car. Even if you mix them every time you fill the tank. But you should really only use one grade at a time. Premium may coat more but it burns hotter and faster so you get better performance and better mileage.
2007-01-01 22:50:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
I run premium through my pick-up about onth a month and regular the rest of the time. My husband runs premium most the time and regular maybe once a month. Depends on your vehicle.
2007-01-01 22:47:40 · answer #5 · answered by Camoguntruck_lady 3 · 0⤊ 0⤋
If the car requires you to use the high end gas then you should add a octane booster to the cheaper gas. They sell it at the gas stations by the oil.
2007-01-01 22:47:18 · answer #6 · answered by Biker 6 · 0⤊ 0⤋
You should stick with the same thing... there's really not that much diffreance in the gases... but I would look in your manual it will tell you exactly what kind of gas to use... if you can't find it there look where you put your gas in at it should tell you there.
2007-01-01 23:05:25 · answer #7 · answered by moon_fariey 3 · 0⤊ 0⤋
My husband works at a dealership and is my understanding that unless you have a very old car, most of them are made to run on the lower octane levels.
2007-01-01 22:49:56 · answer #8 · answered by IAmtheQueen 4 · 0⤊ 0⤋
unless it states on your owners manual to use premium grade then switching to 87 octane is just fine. In fact recc'd for cars that don't specifically require premium
2007-01-01 22:47:25 · answer #9 · answered by fade_this_rally 7 · 2⤊ 0⤋
it's not going to hurt anything, but you really should read you car's manual and stick with ONLY the gas it tells you too. many cars will preform no better with 91 octane than they will with 87, so whywaste the money?
2007-01-01 22:46:27 · answer #10 · answered by Dashes 6 · 1⤊ 0⤋