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Re: [GMCnet] Blackstone Labs and ZDDP oils [message #109378 is a reply to message #109326] Wed, 22 December 2010 02:33 Go to previous messageGo to previous message
Duce Apocalypse is currently offline  Duce Apocalypse   Canada
Messages: 824
Registered: May 2009
Location: Los angeles
Karma:
Senior Member
Robert, did you get the racing grade or standard grade of RP? I think you will like the results. RP's Racing grade oil has about 1/3rd more zddp additive in the oild for those hard and high lifting bumpsticks usually found in racing apps. If you are having oil consumption issues I suggest taking a look at the PCV valve if that bugger gets stuck open it will inhale oil through the valve cover in short order. I would put an oil seporator in the PCV line and see what it catches, I'd bet that's where you are loosing your oil!

As for getting RP on the cheap, consider ordering it in the 5 gallon pail. That will give u enough for about 4 changes plus top off. Also remember that the green beast out back loves RP too! So feeding it some would also make it happy. IIRC a pail of RP could be had for about 150 or so. Also EP can be run to about 6k miles so it has double or more the life of standard oil but do an oil test at blackstone to figuere out the best OCI for your rig...

Robert Mueller wrote on Tue, 21 December 2010 16:51

Shan,

I have oil consumption issues with Double Trouble that appear to be speed
related. I use Shell Rotella T 15-40W and if I drove 55 - 60 the consumption
was nil. If I raised the speed up to 70 the oil consumption went up
significantly. I don't have any specific figures as all I'd do is fill it up
to the dipstick line and no I haven't calibrated the dip stick.

I wanted to switch over to synthetic oil to see if that made a difference. I
had a chat with the local NAPA manager in Humble. He suggested I consider
using single viscosity oil and noted that Royal Purple (and one other
company that I can't remember) made single viscosity synthetic oil. RP goes
all the way up to SAE 50. I decided to go with SAE 40 for Double Trouble
which I put in before I left the USA. Stay tuned to this channel and you'll
find out what happens NEXT SUMMER!

Pricey is right - list was over $9 a quart but because of all the parts John
Sharpe and I buy from this store he sold it to me for around $7.

Regards,
Rob M.
USAussie - Downunder

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Shan Rose
Sent: Wednesday, December 22, 2010 9:18 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Blackstone Labs and ZDDP oils


If you guys are still worried about Zinc then run Royal purple, RP kept its
SL certfication and still has ZDDP in their oil. RP is a bit oricy but its
great stuff...
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73 Canyon Lands, (a.k.a. The Yellow Submarine) West Los Angeles CA

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