Anyone have experience with hy-per lube ZINC REPLACEMENT ADDITIVE?

[Zed Head]

OK I just re-read his email where the rep says "post break-in". So how many miles does it take to break-in an L24?

There's a break-in recommendation in the Owner's Manual.  Looks like 1000 or 2000 miles is a common number.  But those procedures were written when all oils had ZDDP, and may not even be concerned with cam lobe wear-in.  So you're kind of in uncharted territory.  Pretty sure I've seen higher numbers recommended, out there on the interweb, specific to the ZDDP problem, for new cams and rocker/lifters.  Modern engine procedures won't work since they all have roller rockers or lifters.

[djwarner]

Did some research on bob the oil guy, and it appears this product is recognized for reducing cam lobe wear. Since I purchased it already and I am now approaching 600 miles on the break-in, I decided to use it.

My immediate sensation is an engine noise reduction. While straight sixes are known for a silky idle, there is definitely an improvement. It actually sounds like a modern engine.

Of course the biggest draw back is the price with our 3000 mile oil change interval.

[Patcon]

What was the cost?

[djwarner]

Depending on where you buy, it goes for $16-20 a bottle.

[siteunseen]

When I rebuilt my 2.8 with cast iron rings, the temperature gauge let me know when it was broken in.  It ran a lot cooler.  I know there's no hills in Florida so what are you doing for the decelerating pressure build up?  Parking decks?  

 

I went to a wedding in Blue Mountain.  We laughed about that name.  

 

My machinist is the only one laughing now.  I'm about to pull my hair out waiting on him. 

 

 

[djwarner]

Ok, after 3000 miles it was time for an oil change. Still no ZDDP in the stores, but I found Valvoline 20w50 synthetic racing oil with ZDDP.

Being a bit cool for 20w50 here in Florida this December, oil pressure is up a bit.

Now the question is do you need ZDDP in each oil change? If it impregnates the cam surfaces, just how long will it last with a modern oil?

[Bonzi Lon]

This is my Zinc of choice. http://www.cam-shield.com/ Bonzi Lon

 

 

I am still using Cam Shield at every oil change, going on 13K miles now.

 

Bonzi Lon

[Galaxybj]

I use VR-1 in one of my 240's and this in the other:  http://www.amsoil.com/shop/by-product/motor-oil/gasoline/z-rod-10w-30-synthetic-motor-oil/