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Re: [GMCnet] Blackstone Labs and ZDDP oils [message #109491 is a reply to message #109378] Wed, 22 December 2010 18:42 Go to previous messageGo to previous message
USAussie is currently offline  USAussie   United States
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma:
Senior Member
Shan,

I got RP SAE 40 Heavy Duty Synthetic Motor Oil P/N 01040. I called RP Tech
Support and they advise that it has over 1200 ppm ZDDP.

If my oil consumption drops I'll buy 5 gallons of the stuff and use the
second case of quart bottles when traveling.

The PCV valve was changed a year ago but I will check it again.

I bought two cases of it as I intend to put it in the green monster Onan
too. I will use one kind of oil (RP SAE40) and one kind of grease (Valvoline
Synpower) on everything in the coach.

Each year at the end of our tour the oil in the engine and Onan gets
changed, and everything gets greased. We usually do around 4-5 thousand
miles in the 3 months we're there so that's just about right.

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 7:33 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Blackstone Labs and ZDDP oils

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...



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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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