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Additive to quieten down piston slap??


GOT2B GM

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Just wondering what you 3100 / 3400 guys do to subdue the inevitable piston slap in your cars. Figured this could apply to w-bodies so thats why I posted in the General section.

 

My wifeys car is 2000 Alero GLS, that I do all the maintenence on. Its a great running car, only had to do the LIM and both front wheel bearings. ( both inherent 3400 / N-body issues)

 

BUT!

 

The piston slap drives me nuts, its non existant when warm but when its cold, its a bit obnoxious.

 

Any luck with any sort of additives?

 

I'm running 5W30 Castrol synthetic and ACD filters.

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There is nothing you can do to quite piston slap short of redesigning the offset wrist pins, and changine piston to bore clearence...

 

Also, our engine have a natural resonance through the cam valley, that makes the noises a little more distinct. And those of us with engine with the hollow cams with pressed on lobes are much more succeptable to noise

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Lucas might quiet it down. But I kinda doubt it. I wouldn't use Lucas unless needed.

 

Piston Slap is just a nuisance and it goes away in like 5 min.

 

BTW-I wouldn't use the ACD filters. They redesigned them a year or two ago and the E-Core filter in them suck. They sometimes fail.

 

 

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My 3.1 sounds like she's gonna blow up in the morning ever since I got the damn car - still knocks away for 3 mins every morning...I guess sort of taking the motor apart you'll have to live with it.

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My 3.1 sounds like she's gonna blow up in the morning ever since I got the damn car - still knocks away for 3 mins every morning...I guess sort of taking the motor apart you'll have to live with it.

 

FWIW: I've never heard a 2.8/3.1 as loud as yours.

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My 3.1 sounds like she's gonna blow up in the morning ever since I got the damn car - still knocks away for 3 mins every morning...I guess sort of taking the motor apart you'll have to live with it.

 

FWIW: I've never heard a 2.8/3.1 as loud as yours.

 

Yeah it's pretty noticeable - even the neighbors have asked me if my motor is okay before lol..doesn't burn any oil at all, good compression, just a lil noisey on cold morning. This morning since it was above freezing it barely made any noise. I have a recall letter from 1993 in the Lumina for the piston slap issue, but my grandma never had the recall done lol.

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Personally, I like NAPA Gold (don't have those in Canada right?) which is identical to WIX. WIX, Purolator are great filters.

 

Don't go spending the shit tons of cash on Mobil 1, K/N. They are good also but not worth the cash.

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i tried everything on mine and after 4 years i gave up. i still run a full synthetic and fram high mileage and although a little obnoxious i have never had a problem

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i tried everything on mine and after 4 years i gave up. i still run a full synthetic and fram high mileage and although a little obnoxious i have never had a problem

 

You use a Fram? :willynilly: They're gonna eat you alive... I'll back you up though, I use only Fram. (the silver one made for synthetic oils)

 

Matt, Have you tried that stuff you use on the LQ1 to QUIETEN it down? Its 4:30am and I just got home from work, the name is escaping me....

 

Jamie

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Restore, and no I haven't tried it yet. I dont wanna throw money at additives that might not work, but I may have to try Restore in it.

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My 3.1 sounds like she's gonna blow up in the morning ever since I got the damn car - still knocks away for 3 mins every morning...I guess sort of taking the motor apart you'll have to live with it.

 

FWIW: I've never heard a 2.8/3.1 as loud as yours.

 

Yeah it's pretty noticeable - even the neighbors have asked me if my motor is okay before lol..doesn't burn any oil at all, good compression, just a lil noisey on cold morning. This morning since it was above freezing it barely made any noise. I have a recall letter from 1993 in the Lumina for the piston slap issue, but my grandma never had the recall done lol.

 

What does the recall say/do for that issue.

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There is a recall for piston slap on the 3.1's? I've never heard of this?

 

Fram sucks. And I couldn't remember if the NAPA Silver filters are WIX too, I would still get the gold though, they are better.

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*sigh, you're not going to die simply because you use a fram filter. They aren't nearly as good as some others, but they don't have a 75% failure rate or anything. :rolleyes:

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*sigh, you're not going to die simply because you use a fram filter. They aren't nearly as good as some others, but they don't have a 75% failure rate or anything. :rolleyes:

 

 

X2

 

 

I guess it was time for w-body.com's monthly oil filter thread.

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I use Restore in my Volvo. I have averaged about 26.5mpg on the highway at 70mph with it. After using Restore, at the same speed, and with an engine in the back, I got 28mpg. Probably actually ran about 72mph, but still. I do use it in that car...it ha 235,000 miles on it. I'm not much of a fan of snake oils, but so far, so good.

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restore, I like it, but I wont tell everyone to use it. Just a personal preference i guess. I've noticed more on older more beat engines than on better taken care of engines

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Fram is total garbage, bar none, live in denial if you want.

 

I'm just a realist. I'm not going to drive all over fucking town looking for a certain brand of oil filter for my 15 year old car.

 

Instead, I'm going to buy the cheapest PF52 copy I can find. If that happens to be a fram, then well damnit I'll buy it.

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