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Seafoam or Sta-Bil, which is better?

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Old 05-26-2011 | 01:39 PM
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Car: 1989 IROC-Z. Original owner
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Seafoam or Sta-Bil, which is better?

Which is better for long term storage, (6-12 months) Seafoam or Sta-Bil?

I've been using Seafoam. but it looks like Sta-Bil might have marine fuel stabilizer which is even better for gasohol.
Any opinions?
Old 05-26-2011 | 01:47 PM
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Re: Seafoam or Sta-Bil, which is better?

I've never had problems with sta-bil when my car is stored over the long MN winter.
Old 05-26-2011 | 01:55 PM
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Re: Seafoam or Sta-Bil, which is better?

i always put sta bil in the boat when we store it, and it always fires right up without a problem, seafoam is more or less for leaning debris out of fuel lines, and such, also makes the engine smoke a little when its run through.
Old 05-26-2011 | 07:57 PM
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Re: Seafoam or Sta-Bil, which is better?

Sta-bil for keeping gas fresh, Seafoam for cleaning out old gummed up gas.
Old 05-26-2011 | 08:35 PM
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Re: Seafoam or Sta-Bil, which is better?

Ever considered Marvel's Mystery Oil?
Old 05-26-2011 | 09:09 PM
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Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: Seafoam or Sta-Bil, which is better?

Originally Posted by camaronewbie
Sta-bil for keeping gas fresh, Seafoam for cleaning out old gummed up gas.
Anyone ever use the marine sta-bil for their cars? it's supposed to stabilize the ETOH better.

Originally Posted by Stevolwevol
Ever considered Marvel's Mystery Oil?
Is it a good fuel stabilizer?

Last edited by chazman; 05-26-2011 at 09:25 PM.
Old 05-26-2011 | 09:20 PM
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Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: Seafoam or Sta-Bil, which is better?

exactly what camaronewbie sayed, it always worked for me. marvels oil i use sparingly if i cant get to do an oil change or something soon enough and add that in for a short time
Old 05-26-2011 | 10:06 PM
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Re: Seafoam or Sta-Bil, which is better?

Originally Posted by tylercamaro
exactly what camaronewbie sayed, it always worked for me. marvels oil i use sparingly if i cant get to do an oil change or something soon enough and add that in for a short time
I meant using it for a fuel additive.
Old 05-26-2011 | 10:17 PM
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From: Clinton Township, Michigan
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Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: Seafoam or Sta-Bil, which is better?

thats not something id put in to store a vehicle, if i stored it for winter with some stabil and wanted to break it out again for summer id use the mystery oil because it lubricates lines and components and frees them up to decrease the possiblilty of anything sticking. maybe run it through once before hand might be a good idea, but its not gonna save your gas from goin bad while sitting
Old 05-27-2011 | 01:30 AM
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Re: Seafoam or Sta-Bil, which is better?

Originally Posted by tylercamaro
thats not something id put in to store a vehicle, if i stored it for winter with some stabil and wanted to break it out again for summer id use the mystery oil because it lubricates lines and components and frees them up to decrease the possiblilty of anything sticking. maybe run it through once before hand might be a good idea, but its not gonna save your gas from goin bad while sitting
Yes I understand, only I have been adding it to the gas of m camaros, at fill up, and when I store them. I do add sta bil also, so there goes my theory.
Old 05-27-2011 | 08:11 AM
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From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: Seafoam or Sta-Bil, which is better?

hmmmm, i never took marvel as a storage additive, for storage i only use stabil, never used anything else and its never gone worng
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