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Old 09-24-2009, 07:46 PM   #1
Hawker7
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Oil Additive after break-in

I'm sure this has been discussed before but what are you guys using as a additive after 500 miles on a new crate motor? Should I still be using EOS?
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Old 09-24-2009, 08:12 PM   #2
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Re: Oil Additive after break-in

Flat tappet cam? I've been using either EOS or Comp Cams engine Breakin Oil Additive. Seems to work, cam's still good. Knock on wood.
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Last edited by Sinister; 09-24-2009 at 08:12 PM.
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Old 09-24-2009, 08:14 PM   #3
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Re: Oil Additive after break-in

Its a Flat tappet cam. How much EOS? Full or half bottle?

Last edited by Hawker7; 09-24-2009 at 08:14 PM.
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Old 09-24-2009, 08:17 PM   #4
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Re: Oil Additive after break-in

Half bottle of EOS.
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Old 09-24-2009, 08:39 PM   #5
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Re: Oil Additive after break-in

ZDDP Plus is supposed to be good stuff too. http://www.eastwood.com/zddp-oil-add...&utm_term=ZDDP
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Last edited by Sinister; 09-24-2009 at 08:42 PM.
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Old 09-24-2009, 08:49 PM   #6
packers05
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Re: Oil Additive after break-in

I run diesel 30wt it has zinc in it.
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Old 09-24-2009, 10:54 PM   #7
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Re: Oil Additive after break-in

diesel oil has less zink than car oil these days
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Old 09-25-2009, 07:05 AM   #8
Hawker7
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Re: Oil Additive after break-in

Quote:
Originally Posted by Sinister View Post
ZDDP Plus is supposed to be good stuff too. http://www.eastwood.com/zddp-oil-add...&utm_term=ZDDP
I think I'll try the ZDDP Plus. Does anyone else use this stuff??
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Old 09-25-2009, 07:29 AM   #9
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Re: Oil Additive after break-in

i use EOS in my '67. i saw in JEGS that valvoline is offering a full synthetic with more zinc in it for the flat tappet cam. it has a rousch racing logo on the bottle. JEGS also offers a break-in lube that cost less than EOS, i have used it also...
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Old 09-25-2009, 12:54 PM   #10
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Re: Oil Additive after break-in

i run ZDDP in my 85 iroc ever since i wiped a lobe, stuff seems to work
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Old 09-25-2009, 01:31 PM   #11
drewdude92
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Re: Oil Additive after break-in

the 20w-50 valvoline race oil has a high level of zinc but would that be a half way good oil year round?
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Old 09-25-2009, 01:41 PM   #12
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Re: Oil Additive after break-in

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I think I'll try the ZDDP Plus. Does anyone else use this stuff??
I run ZDDP Plus in my 67 Camaro with 396 and flat tappets and no problems so far. However, the engine was built in 1995 when oil had more zinc in it.
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