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    Talking 01 VW Jetta 1.8t Wolfsburg ed. What gas octane???

    Hey guys! Im new here at jetta junkie. And i got a question on my 1st car.

    Ok, so i bought this used jetta 1.8t about a month ago. I got low knowledge about cars since this is my first one. The problem now is that i got a turbo engine and did a research about what type of gas octane i should use. Most of them said 91, but i can also use an 87 octane but it'll be bad in the future. I just filled my near empty gas tank with a 91. The question is do i really need to put a high octane in it? And how would i know if the previous owner filled it with the right one? I asked the dealer where i got the car from on which type of gas did he put, and he said that he put regular, which is 87. Heelp! Thank you.

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    Senior Member Ill_GLX is on a distinguished road Ill_GLX's Avatar
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    Default Re: 01 VW Jetta 1.8t Wolfsburg ed. What gas octane???

    Never put regular in it again, and use synthetic oil. Look inside the gas door and it will tell you what to put in it, assuming the sticker is still there(91 is probably what it says to use). I have the vr6 and not the 1.8t and i could tell the difference between when i had regular and when i had premium in it. moral of the story, no 87 octane.

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    Default Re: 01 VW Jetta 1.8t Wolfsburg ed. What gas octane???

    I am using 91 now. Its just that im worried on what octane did the previous owner. Or will that be voided when i keep using 91?

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    Senior Member MagicGLI is on a distinguished road MagicGLI's Avatar
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    I have 05 GLI mk4 1.8T. Always at least 91. If there is 93 available I use that.
    I'm not totally useless, I can be used as a bad example...

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    Weekend Dubber Skimmer0220 is on a distinguished road Skimmer0220's Avatar
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    93 or nuffin ill go somewhere else if they don't have 93


    Sent from space through a satellite
    Quote Originally Posted by Gargamelmk2 View Post
    Its very windy....accidentally pissed on it.....I have no regrets

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    Default Re: 01 VW Jetta 1.8t Wolfsburg ed. What gas octane???

    I have been in the automotive industry for several years and have my associates degree in automotive and diesel engine diagnostics and repair.
    Wanted to get that out of the way before I tell you that it has been proven that regularly using the same fuel from the same place prolongs life and keeps power in balance on your engine, that said I would find a place that has 93 Octane (Shell or BP being the most common) and sticking with one or the other. You can do some research and see the additives in both and make a sound decision from there.
    I know their is some controversy on the subject and honestly the differences are minimal except for prolonging the life of your fuel pump which can make a substantial difference.
    Just my 2 cents guy.

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    Senior Member andres is on a distinguished road andres's Avatar
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    Default Re: 01 VW Jetta 1.8t Wolfsburg ed. What gas octane???

    i used to live in venezuela they had 98 octane and its less than a dollar to fill up your tank...........

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    Cali doesn't have 93 so I'm stuck with 91

    Sent from my SAMSUNG-SGH-I717 using Tapatalk 2

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    Weekend Dubber Skimmer0220 is on a distinguished road Skimmer0220's Avatar
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    Quote Originally Posted by Noob4Life View Post
    Cali doesn't have 93 so I'm stuck with 91

    Sent from my SAMSUNG-SGH-I717 using Tapatalk 2
    Well that sucks


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    Quote Originally Posted by Gargamelmk2 View Post
    Its very windy....accidentally pissed on it.....I have no regrets

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    Quote Originally Posted by Skimmer0220 View Post
    93 or nuffin ill go somewhere else if they don't have 93


    Sent from space through a satellite
    This ^

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