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Old 07-09-2009, 05:16 PM   #1
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Default Seafoam and Spark plugs

I really want to use the can of seafoam i bought, but i really dont want to put it through the brake booster or vaccum line or w.e. I'm afraid i will screw something up, and i dont even know where this hose line is located.

Would it be okay if i just put the seafoam in my gas tank and through the oil cap into the engine??

Also what kind of spark plugs do you guys use? I want to use 1 heat range colder(105'* i believe) but i dont know how exactly to find them. I see autolites but none of them say 105 or 106'* on them.
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Old 07-09-2009, 05:25 PM   #2
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Putting seafoam threw your vac lines should not hurt anything. You will need to change your oil after you do though. Put 1/3 can in the vac line, and 2/3 in the gas tank.

Autolite 605 is 1 range cooler. 104 is 2 ranges cooler, and 103 is 3 ranges cooler. I've seen the 605 and 104 at Menards for about $2.69 a pair.
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Old 07-09-2009, 05:30 PM   #3
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the thing is, i dont know where the vacuum line is exactly located on my car.

I work at menards and looked at the spark plugs, theres one set that says AP104 on them, are those the 104 spark plugs that i want?
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Old 07-09-2009, 05:32 PM   #4
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I'm using the 605'* and have the 180*T. I did not change my plugs after my last SaeFoam, but I did change the oil and filter - which is a must!
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Old 07-09-2009, 05:33 PM   #5
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Quote:
Originally Posted by Bwayney View Post
the thing is, i dont know where the vacuum line is exactly located on my car.
If you have the SC cover on, take it off. On top of the SC is a black plastic tree with a couple of lines going to it. Those are all vacuum lines.
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Old 07-09-2009, 05:49 PM   #6
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Do you mean the engine cover that says 3800 series II Supercharged?
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Old 07-09-2009, 06:00 PM   #7
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That'* the one, take it off
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Old 07-09-2009, 11:03 PM   #8
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No, you don't want AP605 plugs. They're platinums, which is the P part, and you want copper plugs.
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Old 07-09-2009, 11:48 PM   #9
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why do i want copper plugs?
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Old 07-09-2009, 11:49 PM   #10
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Platinum ones have been known to cause misfires under supercharging conditions. This is probably only if you drop a pulley size or do some tuning, but it is nice to be safe. Copper plugs draw out heat from your combustion chamber much better than platinum ones.
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