new engine oils?
Thread Starter
Advanced
Joined: Sep 2006
Posts: 94
Likes: 0
From: Modesto CA.
new engine oils?
i just lost my cam after 12,000 miles.... mobil 1 15/50... so i did some checking and found this www.ttalk.info/zddp.htm
try typing in zddp in your search engine and read
numbers matching 69 B/B vert
try typing in zddp in your search engine and read
numbers matching 69 B/B vert
Pro
Joined: Jan 2006
Posts: 599
Likes: 0
From: New York
That was a good read n it makes me feel good especially since I chose to go with Redline after my engine ws broken in...About 1,000 miles since switching to Redline now n all systems are running great....Thanx ...Jerrylee///
Drifting
Joined: Sep 2006
Posts: 1,986
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From: Columbus MN
i just lost my cam after 12,000 miles.... mobil 1 15/50... so i did some checking and found this www.ttalk.info/zddp.htm
Melting Slicks
Joined: Jul 2005
Posts: 2,545
Likes: 3
From: 406ci SB, AFR 180 Heads - 490 HP @5,600 RPM 529 lb-ft @ 4,100 RPM
There are lots of oils out there that contain enough ZDDP. A few examples are
Mobile 1 High Mileage
Castrol GTX 20W-50
Castrol GTX High Mileage 20W-50 or -40
And all diesel oils no matter what brand. On older engines we need ZDDP and the new oils GF-4 grades do not contain it.
This may sound odd and I'm sure some may argue, but I've run diesel oils ever since the government made oil companies lower or remove ZPPD (zinc) without issues. My cams and internal componets are fine, no signs of abnormal wear, only because of the higher ZDDP in the oils I use. Todays oils are not meant for our older engines
Next time your at your auto store, pick up a bottle of diesel or a high mileage oil and read it's contents, racing oils are also good.
Mobile 1 High Mileage
Castrol GTX 20W-50
Castrol GTX High Mileage 20W-50 or -40
And all diesel oils no matter what brand. On older engines we need ZDDP and the new oils GF-4 grades do not contain it.
This may sound odd and I'm sure some may argue, but I've run diesel oils ever since the government made oil companies lower or remove ZPPD (zinc) without issues. My cams and internal componets are fine, no signs of abnormal wear, only because of the higher ZDDP in the oils I use. Todays oils are not meant for our older engines
Next time your at your auto store, pick up a bottle of diesel or a high mileage oil and read it's contents, racing oils are also good.
1969/1971/2021 Coupes
Joined: Jan 2008
Posts: 2,212
Likes: 80
From: Port Huron MI
St. Jude Donor '09-'10-'11-'12-'13-'14-'15
Interesting Post
Does anyone have any in depth knowledge regarding the oil additive "ZMAX? I watched a segment on "Speed" and they hyped it up which is no surprise. Just wondering if it is what they all say it is. Thanx all.
Melting Slicks
Joined: Jul 2005
Posts: 2,545
Likes: 3
From: 406ci SB, AFR 180 Heads - 490 HP @5,600 RPM 529 lb-ft @ 4,100 RPM
Second, ZMAX is an additive that the FTC (Federal Trade Commission) sued for false or misleading advertising of their product. This takes me back to my first reason, it's not needed and most aren't or do what they say.
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1969/1971/2021 Coupes
Joined: Jan 2008
Posts: 2,212
Likes: 80
From: Port Huron MI
St. Jude Donor '09-'10-'11-'12-'13-'14-'15
Thanx for the feedback (oil additives)
Thank you very much for the info. I "was" a believer but when I went to the local Autozone ands saw the 35 dollar pricetag for the additive, I decided to come back to where I knew I would get the right answer. This forum is awsome!!! Thanx again everyone!!!
Le Mans Master
Joined: Sep 2001
Posts: 7,739
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From: Unreconstructed, South Carolina
Except ... GM EOS ... it has the additive pack(wear metals) that're missing from most modern oils. Flat tappet lifters require the missing pack ... roller lifters do not. Rotella T 15W-40 WITH a bottle of GM EOS is good for flat tappet breakin ... thereafter straight Rotella ... or your pick mixed w/ a half-bottle of GM EOS. Yes, newest Rotella (CJ) reduced wear packs in 2007, but there's still plenty there in CJ.
Thread Starter
Advanced
Joined: Sep 2006
Posts: 94
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From: Modesto CA.
Except ... GM EOS ... it has the additive pack(wear metals) that're missing from most modern oils. Flat tappet lifters require the missing pack ... roller lifters do not. Rotella T 15W-40 WITH a bottle of GM EOS is good for flat tappet breakin ... thereafter straight Rotella ... or your pick mixed w/ a half-bottle of GM EOS. Yes, newest Rotella (CJ) reduced wear packs in 2007, but there's still plenty there in CJ.
a friend called the Chevy dealer and asked, there reply was, they no longer sell E.O.S.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
I last bought some from local GM just last year (2007) ... maybe it was old stock ... I've since heard GM still sells it but its part number has changed ... but have not verified w/ local GM.
Le Mans Master
Joined: Sep 2001
Posts: 7,739
Likes: 630
From: Unreconstructed, South Carolina
"new" Rotella AOK ... it was reduced but only slightly ... diesel cats not like gas cats ... new Rotella 15W-40 CJ4 still has plenty of wear additives.
EOS p/n did change from old p/n 1052367 to new p/n 88862586
EOS p/n did change from old p/n 1052367 to new p/n 88862586
Last edited by jackson; Feb 2, 2008 at 02:43 PM. Reason: corrected typo
Burning Brakes
Joined: Sep 2001
Posts: 1,019
Likes: 28
From: Kingman, AZ
i just lost my cam after 12,000 miles.... mobil 1 15/50... so i did some checking and found this www.ttalk.info/zddp.htm
try typing in zddp in your search engine and read
numbers matching 69 B/B vert
try typing in zddp in your search engine and read
numbers matching 69 B/B vert
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
GM does sell EOS again...but it's been reformulated. Suuposedly it has less ZDDP than before but still has it.
For what it's worth, a local GM dealer parts manager said EOS is essentially GM's version of STP.
For what it's worth, a local GM dealer parts manager said EOS is essentially GM's version of STP.
Drifting
Joined: Oct 2005
Posts: 1,331
Likes: 479
From: Appleton Wisconsin
Check this out on chevelle forum,Scott paid a lab to test different oils for zinc etc. Go to the last page, this thread has been going on for a long time, its interesting. http://www.chevelles.com/forums/showthread.php?t=195620