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post #1 of 14 (permalink) Old 06-02-2009, 09:45 AM Thread Starter
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ZDDPlus

FYI, I see YearOne now carries it... You have to scroll down to the bottom of the page.

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post #2 of 14 (permalink) Old 06-02-2009, 12:11 PM
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I was under the impression that was only needed for new cam break-in?
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post #3 of 14 (permalink) Old 06-02-2009, 12:28 PM
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Rukee, that used to be the case. Now you need it in your engine oil at all times. The oil companies removed the ZDDP from their oils iin 2006 to comply with new federal emissions regulations: worn out, oil burning cars with cat converters were experiencing cat failure from the zddp, which is mostly heavy metals. If you're running a flat-tappet cam and not a full roller set-up, you need it. You can run Delo or Rotella diesel-spec oil as well....it still has Zddp (for now). I run the Rotella 15/40 with a zddp additive. Google ZDDP for more info.
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post #4 of 14 (permalink) Old 06-02-2009, 01:44 PM
 
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Does this stuff blend well with synthetic?
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post #5 of 14 (permalink) Old 06-02-2009, 06:43 PM
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Yes.
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post #6 of 14 (permalink) Old 06-08-2009, 02:57 PM
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Does this stuff blend well with synthetic?
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Yes.
Do you even need it with synthetic ??? That stuff is like snot on a door knob....

Mitch
1967 GTO; Gulf Turquoise on Black, 4 speed, buckets SOLD
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post #7 of 14 (permalink) Old 06-08-2009, 10:33 PM
 
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Shell makes a blend with it in Rotella and it's about the same price as the others. I run it to be safe. No doubt on the benefits. In my opinion, you're silly if you don't run it.
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post #8 of 14 (permalink) Old 06-09-2009, 07:10 AM
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A fellow at a local car show showed me the oil he uses for his 68 El Camino...

Valvoline Racing Oil 20W50 with HIGH ZINC.... 4.99 a quart. That's cheaper than adding the ZDD at 10.00 a bottle.

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post #9 of 14 (permalink) Old 06-09-2009, 07:13 AM
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Hmmm....I'll have to look at the bottle cause Valvoline Racing 20w50 is the only thing I've been running in the GTO for years now.
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post #10 of 14 (permalink) Old 06-09-2009, 07:23 AM
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Hmmm....I'll have to look at the bottle cause Valvoline Racing 20w50 is the only thing I've been running in the GTO for years now.
He showed me the bottle, HIGH ZINC in yellow at the top of the bottle. This week I will be stocking up on this.

Here is a link to Amazon.com they have it http://www.amazon.com/Valvoline-VV211-Formula-Approved-Bottles/dp/B000CCIFQM/ref=sr_1_1?ie=UTF8&s=automotive&qid=1244550144&sr=8-1

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