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Thread: Regular vs Premium Gas

  1. #1
    Junior Member astroz0mbies's Avatar
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    Regular vs Premium Gas

    From reading the manual, it's my understanding that you're supposed to fill the Micra with regular gas. However, my dad has been encouraging me for months to fill up with premium instead because it's better/cleaner for the engine and also helps with fuel economy (you get a tank of gas for longer than with regular). I have noticed that after filling with premium, I do get a bit better mileage.

    Is it okay to fill a car with premium even though the manual says regular? My dad has been driving for a long time and I do consider his opinion but I wanted to get some other opinions. He's pretty adamant about only filling the Micra with premium.


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    Senior Member Moose's Avatar
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    Hi astroz0mbies,

    I have had my Micra a year and 3 months, very low milage car not quite to 9000km yet. Up until last week i always filled up with premium. There have been a few heated debates here on the forum on the premium/regular question and after looking on line at a bunch more info, debates and technical discussions, i have decide to try running regular gas to see if there is any difference i can notice with regards to mileage or performance.

    I am at a little over half a tank and so far no noticable difference anywhere (except the price).

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    For my self.i always put 91+ octane because it get a bit more range and its cleaner. No ethanol in there.

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    astroz0mbies (04-17-2017)

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    Administrator MetroMPG's Avatar
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    You won't hurt the car putting in premium.

    The small improvement in fuel economy is probably not as big as the cost difference.

    If money's no concern, don't worry about it.

        __________________________________________

        click to view fuel log View my fuel log 2015 Micra S manual: 5.0 L/100 km ... 56.5 mpg (Imp) ... 20.0 km/L ... 47.0 mpg (US) ...


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    Senior Member micrapolis's Avatar
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    follow the manual

    putting premium on an econobox like our Micra is gonna do nothing but 1) empty your wallet faster, and 2) produce a psychological placebo effect on you
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    Senior Member geodude's Avatar
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    Quote Originally Posted by micrapolis View Post
    follow the manual

    putting premium on an econobox like our Micra is gonna do nothing but 1) empty your wallet faster, and 2) produce a psychological placebo effect on you
    ^This
    First car: 1984 silver Nissan Micra
    Current car: 2016 Gun Metallic Nissan Micra SV

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    Senior Member Ajijic's Avatar
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    Don’t Waste Money on Premium Gas if Your Car Is Made for Regular

    But using a higher octane fuel than a vehicle’s owner’s manual specifies “provides no increase in fuel economy, horsepower or a reduction in emissions,” said Greg Brannon, the AAA’s director of automotive engineering.

    The extra octane acts as a catalyst for combustion in a high compression engine. If the manual doesn't call for premium don't waste your money!

        __________________________________________

        click to view fuel log View my fuel log 2016 Micra Active manual: 6.0 L/100 km ... 46.9 mpg (Imp) ... 16.6 km/L ... 39.0 mpg (US) ...


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  14. #8
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    If you look in your owners manual it says 87. But looking for 91. So im using 91 oct

  15. #9
    Senior Member Ajijic's Avatar
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    Quote Originally Posted by n15sk4 View Post
    If you look in your owners manual it says 87. But looking for 91. So im using 91 oct
    If it states 87, why put in 91?

        __________________________________________

        click to view fuel log View my fuel log 2016 Micra Active manual: 6.0 L/100 km ... 46.9 mpg (Imp) ... 16.6 km/L ... 39.0 mpg (US) ...


  16. #10
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    Dude, take a look at Micra's oil filter, it's 1/3 size of a regular oil filter. A large size lawn mower has a bigger filter than our Micra's engine. Our tiny 4 cylinder engine don't need premium gas.



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