What fuel for a 87 Chevy Van with 76000 miles

Discussion in 'The Okie Corral' started by NMG26, Aug 10, 2020.

  1. Regular

    36 vote(s)
    90.0%
  2. Mid

    4 vote(s)
    10.0%
  3. Premium

    0 vote(s)
    0.0%
  1. NMG26

    NMG26

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    I've always bought the regular stuff.

    I'm wondering if the late eighties 350 engine would like a mid grade better?

    Van runs great BTW

    [​IMG]
     
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  2. cbird77

    cbird77

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    Cool van - my grandfather had an old green Chevy van with shag carpet. It ran for ever. I believe in using mid grade in everything. I figure even if it doesn't need it, it will still burn cleaner. My old Jeep can sure tell when I shock with premium every now and then.
     

  3. buddyd157

    buddyd157

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    regular 87 octane.

    all gasoline's have the same base ingredients. some will debate different brands will be better than another.

    even local mom/pop stores sell gasoline from the same tank holding area, as the big boys do. however, some additives may not be included, and this is to keep the pricing lower.

    you can always add something like Lucas fuel system cleaner once in a while, i think they recommend at every oil change.

    you could even add octane booster, but that stuff can be costly at each fill up.

    i say, stick with the name brand gasoline's, and mom/pop stores only in a pinch.

    but keep the fuel system clean...!!!!
     
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  4. Ramjet38

    Ramjet38 Mentally Frozen

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    Give it what's used to drinking. Regular.
     
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  5. ScarFace88

    ScarFace88 NOT MOD APPROVED

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    Regular, ethanol free if you can find it.
     
  6. Upgrayedd

    Upgrayedd

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    If it's not high compression, then regular.
    Premium gas isn't better than regular. It just doesn't detonate as easily.
     
  7. mdlott

    mdlott

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    This right here. Higher octane fuel is only required to eliminate detonation on higher compression engines. It will not gain you any power and will only drain your wallet.
     
  8. Batesmotel

    Batesmotel

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    This. Regular engine, regular gas. High compression engine, high octane gas.

    Worry more about good oil on an older engine.
     
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  9. IamtheNRA

    IamtheNRA

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  10. cougar_ml

    cougar_ml

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    What does the owner's manual recommend?
     
  11. Borg Warner

    Borg Warner

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    It also depends on your ignition advance. Some cars are set up to run best on premium but can be de-tuned to run on regular.

    One thing I like to do is add fuel injector cleaner to my gas about ever 6 or 7 tanklfulls.
     
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  12. Borg Warner

    Borg Warner

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    I don't know if higher octane fuel burns "cleaner". That might just be your imagination, like when your car seems to run better after you wash it.
     
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  13. Upgrayedd

    Upgrayedd

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    It's not imagination as much as manipulation by the marketing department. They market the premium gas as a superior product to convince people who don't need it to buy it anyway. The advertising tricks your brain into believing it's better gas when it isn't.
     
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  14. IamtheNRA

    IamtheNRA

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    If your car doesn't REQUIRE premium, then it's a waste of $$$.
     
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  15. jonb32248

    jonb32248

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    If you look at the tanker trucks that deliever it they have different placards that flip over with different store names. Same fuel going in tanks.
     
  16. jmontgomery

    jmontgomery

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    As others have said premium is just higher octane. Only run it in engines that need it. If you run higher octane in an engineer designed for lower octane fuel you're just wasting money and probably getting poorer fuel economy as well.

    Don't run lower octane in a high octane engine.
     
  17. jimcorbin

    jimcorbin

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    Nice shaggin wagon.
     
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  18. cougar_ml

    cougar_ml

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    Octane = resistance to detonation.

    The higher the octane, the higher the compression you can have before the fuel will start igniting from the heat/pressure.

    Going to a higher octane rating doesn't actually do anything unless you're running an engine that needs it, and I've even seen a couple studies in the past where it's been claimed running higher octane fuel in a lower compression engine can adversely affect efficiency.
     
  19. Upgrayedd

    Upgrayedd

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    The other one thing worth mentioning is octane is measured on several scales. For example, regular gas is 87 octane, but it's also 91 RON and can also be measured by MON or AKI depending on where you buy it. Your owners manual should specify what you need. My vfr800 requires 91 RON, or 87 octane according to the manual.
     
  20. Syclone0538

    Syclone0538

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    Higher octane fuels generally have more cleaning additives.

    I know some places have less than 87 as regular, so use 87, whether that's regular or mid grade. Shell and Chevron are good. If you use something else, get a bottle of Chevron Techron cleaner from Wal-Mart a couple times a year.
     
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