Additive to quieten down piston slap??

[GOT2B GM]

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.

[BXX]

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

[5speedz34]

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.

[Psych0matt]

quieten?

[1990lumina]

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.

[5speedz34]

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.

[1990lumina]

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.

[GOT2B GM]

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.

So, what filters would you recommend?

quieten?

Yes

http://www.thefreedictionary.com/quieten

[5speedz34]

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.

[GOT2B GM]

We have NAPA, I'll have to check them out.

[5speedz34]

We have NAPA, I'll have to check them out.

It has to be the GOLD line.

[rockfangd]

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

[hotrodolds]

Just as a heads up, NAPA Silver is made by WIX as well. So is the CarQuest line of filters.

[CSI_MuNkY]

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? 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

[GOT2B GM]

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.