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post #1 of 27 (permalink) Old 08-21-2018, 10:30 AM Thread Starter
 
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Premium vs lower Octane

I bought my 2013 Pure Smart Car this year and have been filling it with the recommended Premium gas which is of course priced quite a bit higher than regular gas. I came across Edmund's discussion of Premium vs regular gas( https://www.edmunds.com/fuel-economy...g-premium.html )and it had 2 lists: one a list of cars that it recommended Premium gas for and one where Premium was required. The 2013 Pure was on the list of recommended whereas later models it is required.
Can anyone comment on this and tell me what their experience with both fuel types is?
Not sure if it matters but I live in Ontario Canada and do about half and half highway/ town driving.

Thanks
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post #2 of 27 (permalink) Old 08-21-2018, 10:46 AM
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Originally Posted by KitKat303 View Post
I bought my 2013 Pure Smart Car this year and have been filling it with the recommended Premium gas which is of course priced quite a bit higher than regular gas.

Can anyone comment on this and tell me what their experience with both fuel types is?

Not sure if it matters but I live in Ontario Canada and do about half and half highway/ town driving.
Welcome to SCoA!

And while your location in Canada may put a little different spin on it, this debate has been out there since the beginning of smart in N.A.?

Personally, my MY08 cabrio has been a "Premium smart" since new. It's only 8 gallons of gas?

https://www.smartcarofamerica.com/fo...ium-gas-12001/
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post #3 of 27 (permalink) Old 08-21-2018, 10:58 AM Thread Starter
 
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Thanks I found and read the thread on gas and it seems to be fairly evenly split between the two camps premium vs regular gas. I will see what the mechanic I am going to use says
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post #4 of 27 (permalink) Old 08-21-2018, 11:06 AM
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Make sure that your Mechanic is aware of the valve/head weakness that can sometimes haunt the Mitsu engine . . .
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post #5 of 27 (permalink) Old 08-21-2018, 02:41 PM
 
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No matter what, I feel it is not worth the risk.
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post #6 of 27 (permalink) Old 08-21-2018, 02:47 PM
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I have personally seen engine damage in smart engines using 87 octane. I guarantee you that nobody recommending 87 octane will pitch in on your engine repair bills if it causes irreversible engine damage.
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post #7 of 27 (permalink) Old 08-21-2018, 04:14 PM
 
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Make sure that your Mechanic is aware of the valve/head weakness that can sometimes haunt the Mitsu engine . . .
Number 2 burnt valve here we come.
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post #8 of 27 (permalink) Old 08-21-2018, 05:48 PM
 
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Here in the USA, I have a Shell Rewards card that gives me 10 cents a gallon off, so for the few extra pennies I will always run their highest octane fuel.
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post #9 of 27 (permalink) Old 08-22-2018, 08:17 AM
 
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Using the Shell card too. I like putting in the fuel octane rating that the manufacture calls for. First because that’s what the motor was designed to use , and second, because of compression ratios and the risk of detonation , which in such a small motor could be big trouble . It’s worth the few cents more to have less worry .
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post #10 of 27 (permalink) Old 08-22-2018, 04:43 PM
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Other than the gas put in my car by the M/B-smart dealer at time of purchase, it has had nothing but Shell 93 octane for the last 9 plus years. In fact, if I remember correctly, all gas was purchased by me at the same Shell station near my subdivision.
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