Question:
I don't see the difference in mileage, and 87 and 93 octanes isn't that big of a deal. I'd appreaciate any helpful insights.
Answers:
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Simply put the higher the octane rating the more slowly the fuel burns per given volume. As others have said, if your car runs fine on lower octane, without pinging or detonation (sounds like marbles rattling in a tin can) then go with that octane rating.What does it mean when your oil light comes on when you let off the gas pedal?
The longer the fuel is stewed at the refinery, the higher the octane. More powerful engines with higher compression ratios, (around 9:1) need higher octane fuel to keep from having detonation or pinging. My old 390 in my 1969 F-100 has a ratio of 9.2:1, and if i run anything less than 92 octane, it will run terribly. If yours runs fine on 87, then use 87. Anything more than that is just a waste of fuel and your money.How hard would it be to replace the brakes?
the difference is only in price .. this is a way for the oil companies to fleece u a little morewhy does heater in my ford Focus smell of cat poo?
octane is the differnce. high compression motors need 93. most dont. dont waste your money on premium if u dont need it..look in your owners manual for correct gas...my car shakes after i got fuel cleaning is that normal?
if You are in the states.none.!1
all gas stations sell gas appropriate to all cars brand.
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I has been a mechanic my whole like.
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I confess I don't Know the difference.Octanes?
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I never met a Car with octanes counter or testing octanes.
what I have seen is cars metering gasoline.
"the new cars are computer controlled fuel metering for a better fuel efficiency which end up in more millage when You have more octanes"
Yea ,right!!
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The only difference is it's octane rating. Octane ratings only reflect it's resistance to detonation(pinging) not how long it was "brewed" or how dirty it is or anything. If you have a high compression engine or a turbo/supercharged engine, you will need it to prevent damage to your combustion chamber. Most cars do not require it so don't give extra money to the makers if you don't have to.In general it has to do with how well the car runs on the various fuels. I have owned Fords that ping unless you put premium in them.
My Honda runs fine on 87 but I see a minor improvement with 91 octane, my 2004 Tahoe runs best on 93 octane but does fine with 91, my boat is the same. I run everything on 91 octane for simplicity.
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Every car has a recommended octane from the vehicle or engine manufacturer, if you check the owner's manual you can find the manufacturer's recommendation. Most Chevy trucks are supposed to run on higher octane fuels, cars are often less, my Honda says 87 or higher.
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