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Re: [GMCnet] Blackstone Labs and ZDDP oils [message #109469 is a reply to message #109422]

Wed, 22 December 2010 16:54

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma:

Senior Member

Larry,

I went to SAE 40 Royal Purple because I think it is an oil consumption issue
related to engine speed and going to a single viscosity oil might help. This
may be wishful thinking but I had a chat with the manager of the NAPA store
where I bought the oil and the Royal Purple customer service engineer and
the consensus that it would be worth a try to see what happens. If it didn't
help it was an engine / ring / valve guide issue.

The engine in Double Trouble was rebuilt by Ken Frey about 50,000 miles ago,
had no sludge in the valve covers when I replaced the gaskets, no sludge in
lifter valley just the "normal" burnt on crud when I swapped over to the
aluminum manifold, and virtually none in the crankcase when I replaced the
single drain oil pan with the dual drain.

Regards,
Rob M.
USAussie - Downunder

-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Larry
Sent: Thursday, December 23, 2010 4:19 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Blackstone Labs and ZDDP oils

you are aware that it takes some time for all the oil to run back to the pan
so when you stop for gas your oil will always read low for about 20 minutes.

Fred V

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.

Robert Mueller

/////////////////////////////////////////

I am curious to the result of changing the oil dipstix change since Rob
states the oil level seems normal when he travels at 55-60 mph and changes
when he drives over that amount.

The oils are distributed at the 55-60 mph speed and if it were a drain back
issue, it would seem he would see it when he checked it then as well.

This of course is if he is checking oil level every time at the same time
when pulled into the station for refill.

Hopefully, checking the level a bit later will see less oil use, that is the
easy fix, I think.

Just thinking it curious that only 5mph more can make that much of a
difference.

Could the rings be disrupted that much with that little change in
motion/force?????

Could a vibration due to friction cause this and might an additive correct
the friction?

Just my thoughts

--
Gatsbys' CRUISER :d
74 GLACIER X, 260
455/APC/4 bagg'r(ver3)
Remflex Manifold gaskets
_______________________________________________
Purchased 08-18-04

_

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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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[Message index]

		Blackstone Labs and ZDDP oils By: Steve Stolley on Tue, 21 December 2010 14:07
		Re: Blackstone Labs and ZDDP oils By: Harry on Tue, 21 December 2010 14:52
		Re: Blackstone Labs and ZDDP oils By: Bob de Kruyff on Tue, 21 December 2010 16:29
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Ken Henderson on Tue, 21 December 2010 22:44
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Ken Burton on Tue, 21 December 2010 23:34
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Bob de Kruyff on Wed, 22 December 2010 09:26
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Bob de Kruyff on Wed, 22 December 2010 09:25
		Re: Blackstone Labs and ZDDP oils By: Duce Apocalypse on Tue, 21 December 2010 16:17
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: USAussie on Tue, 21 December 2010 16:51
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: fred v on Tue, 21 December 2010 19:17
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: USAussie on Tue, 21 December 2010 20:12
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: k2gkk on Tue, 21 December 2010 21:45
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: USAussie on Tue, 21 December 2010 22:00
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Larry C on Wed, 22 December 2010 11:19
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: James Hupy on Wed, 22 December 2010 11:46
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: USAussie on Wed, 22 December 2010 16:54
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: fred v on Wed, 22 December 2010 17:42
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Dennis S on Wed, 22 December 2010 20:19
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: James Hupy on Wed, 22 December 2010 22:53
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: fred v on Thu, 23 December 2010 17:49
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Steven Ferguson on Fri, 24 December 2010 06:32
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Richard Denney on Mon, 03 January 2011 16:03
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: WD0AFQ on Mon, 03 January 2011 16:25
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Steven Ferguson on Thu, 23 December 2010 05:55
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: fred v on Thu, 23 December 2010 17:50
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Duce Apocalypse on Wed, 22 December 2010 02:33
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: USAussie on Wed, 22 December 2010 18:42
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Steven Ferguson on Wed, 22 December 2010 08:16
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Steve Stolley on Wed, 22 December 2010 12:09
		Re: [GMCnet] Blackstone Labs and ZDDP oils By: Matt Colie on Wed, 22 December 2010 13:34
		Re: Blackstone Labs and ZDDP oils By: JohnL455 on Mon, 03 January 2011 19:13

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