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| [GMCnet] Motor oil with "sufficient" ZDDP levels [message #209247] |
Thu, 30 May 2013 08:59  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma:
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G'day,
As you can see this message was forwarded by Bdub back in 2010, I am forwarding it again so that RobinH can read it and decide if HE
should be / is concerned as I don't believe he was around in 2010.
It is not meant to start an oil war, I concede that in an engine that has a cam that is "well broken in" evidence suggests the level
of ZDDP is not critical. However, on the other side of the coin, the "sufficient" level of ZDDP can't hurt.
I HAVE NOT tested the links, if they don't work sorry and these oils may or may not be available three years down the pike.
Regards,
Rob M.
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org [mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Billy Massey
Sent: Saturday, February 27, 2010 11:18 AM
To: GMCnet
Subject: [GMCnet] Motor Oil with proper ZDDP level
Just received this from a fellow GMCer not on this list. I know a few others received it also. The post came from a Corvette
forum.
It would be good to have in our archives, so here it is in its entirety.
Starting in 1993 The American Petroleum Institute (API) and International Lubricants Standards Approval Committee (ILSAC) mandated
reductions in ZDDP (Zinc Dialkyl-Dithio-Phosphate or "zink"), the most commonly used anti-wear additive in motor oils. ZDDP contains
both zinc and phosphorus components working together to provide anti-wear protection. Reducing the level of ZDDP
compromises protection to engine components, most notably in flat tappet camshafts, and dramatically during flat-tappet cam
break-in. The level of ZDDP specified in the 1988 API SF was 1500 ppm, and in the 1993 API SG 1200 ppm. Introduced in 2005, current
API SM and ILSAC GF-4 specifications for gasoline engines have maximum and minimum phosphorus levels of 800 ppm and 600 ppm,
respectively, for SAE 0W-20, SAE 5W-20, SAE 0W-30, SAE 5W-30 and SAE 10W-30 motor oils. All other gasoline SAE grades do not have a
mandated phosphorus limit. Flat-tappet camshaft failures appeared with introduction these specifications in 2005.
From these specifications and timeline, we propose that 1200 PPM is a minimum phosphorus level and 1500 PPM or more is suggested for
extreme lifts and spring pressures.
The list below are oils that appear to contain >= 1200 Parts Per Million (ppm) ZDDP (Zinc Dialkyl-Dithio-Phosphate or "zink") for
flat-tappet cams. At the bottom of the list are oils made specifically for flat-tappet break-in with far higher concentrations. Note
that it's extremely critical that the list specifies products and grades; anything other than the products and grades listed need to
be researched on your own.
No warranty expressed or implied, do your own research, use at your own risk and don't run with scissors. My point here is that I'm
not an expert this is just a starting point for you to research. Let me know of any changes or any additional data - with pointers
to either a claim of flat-tappet support or the ZDDP PPM.
I have declined to include racing oils that are only available in single-weight, "ZDDP" additives, and oils that are not readily
retail-available as these are outside of the scope of this list
Thanks to all the folks that posted oil information across the Forum and on this thread!
Should you choose to do your own oil analysis:
Blackstone Labs (www.blackstone-labs.com/)
Oil List
AMSOIL SYNTHETIC PREMIUM PROTECTION (http://www.amsoil.com/StoreFront/amo.aspx)
Grades: 10W40 (AMO), 20W50 (ARO)
Claim: "It is ideal for high-mileage vehicles, vehicles with flat-tappet cams and high-stress vehicles subject to hot temperatures,
heavy hauling, trailer pulling or off-road use."
Verification: ~1265 PPM:
https://www.amsoil.com/dealer/techse...t%20Tappet.pdf
Additional Information:
AMO 10W-40 Synthetic Premium Protection Phos: 1265 Zinc: 1378
ARO 20W-50 Synthetic Premium Protection Phos: 1266 Zinc: 1379
HDD Series 3000 Synthetic 5W-30 Diesel Oil Phos: 1266 Zinc: 1379
TRO 20W-50 Synthetic Racing Oil Phos: 1235 Zinc: 1370
AHR SAE 60 Synthetic Racing Oil Phos: 1265 Zinc: 1375
BRAD PENN (http://www.bradpennracing.com/Products/Racing-Oils.aspx)
Grades: 10W30,10W40,20W50
Claim: "...increased concentration of "zinc" (zinc dialkyldithiophosphate a.k.a. ZDDP) provides outstanding anti-wear/anti-scuffing
protection for engines employing either 'flat tappet' or roller cams."
Verification: "The Penn-Grade 1R oils "typical" 1,500 ppm Zinc (Zn) and 1340-1400 ppm Phosphorus (P) content". NOTE that a number of
posted oil analysis have shown far lower ZDDP - in the 700-1100 range.
CASTROL SYNTEC 20W-50 (http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=7032644)
Grades: 20W50
Claim: "Engineered to increase wear protection for classic cars with flat tappet camshafts"
Verification: Email from Castrol 12/9/09: Current Syntec 20W-50 (for classic cars) is actually a modern premium quality API SM
product that has been Zinc boosted to Zinc levels that are reminiscent of levels from historic API categories such as SG when flat
tappet cams with high spring loads were common in the fleet. For reference, note that the API SM category has the most rigorous
passenger car engine oil (PCO) test performance requirements in the history of the API PCO categories. The level of Zinc in the new
Syntec 20W-50 is a minimum of 1200 ppm, which will provide excellent anti-wear protection for the cam and lifters in a flat-tappet
cam engine.
COLLECTOR'S CHOICE MOTOR OIL (http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=65910)
Grades: 20W50
Claim: Read verification sheet below
Verification: 2000 PPM claimed:
http://www.mossmotors.com/graphics/p...0-815_INST.pdf
JOE GIBBS HOT ROD OIL (http://www.joegibbsracingoil.com/hotrod/index.html)
Grades: 10W30, 15W50
Claim: Higher levels of Zinc (ZDP) than regular passenger car oils. Delivers proper anti-wear protection for older style push-rod
and flat-tappet engines.
Verification: 1270 PPM ZDDP
http://www.joegibbsracingoil.com/Dat...2010-22-07.doc
MOBILE 1 15W-50 (https://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1_15W-50_.aspx)
Grades: 15W50
Claim: "Mobil 1 15W-50 is also recommended for older valve train designs that may benefit from a higher level of anti-wear normally
not required for newer generation vehicles."
Verification: 1200 PPM ZDDP
http://www.mobiloil.com/USA-English/...duct_Guide.pdf
NOTE: ONLY bottles bearing the "For Older Engines" note on the label.
RED LINE SYNTHETIC MOTOR OIL (http://www.redlineoil.com/Products.aspx?pcid=21)
Grades: 0W20, 5W20, 0W30, 5W30,10W30, 0W40,5W40,10W40,15W50,20W50
Claim: They make no claim regarding flat-tappet engines on their website.
Verification: Around 1300-1400 PPM on Bob Is The Oil Guy posts. Search for others.
http://bobistheoilguy.com/forums/ubb...13#Post1539713
ROYAL PURPLE RP (http://www.royalpurple.com/motor-oil.html)
Grades: 0W40, 5W20, 5W30, 5W40, 10W30, 10W40, 15W40, 20W50
Claim: "For stock or mildly modified flat tappet valve trains (<.525" lift), we recommend our SAE 10W40, 15W40 or 20W50 engine
oils."
ROYAL PURPLE XPR (http://www.royalpurple.com/xpr-racing-oil.html)
Grades:0W10, 5W20, 5W30, 10W40, 20W50
Claim: "In applications with flat tappet valve trains using high-lift cams and/or high RPM applications, we strongly recommend
upgrading to our XPR line of engine oils as these have an even greater concentration of ZDDP providing excellent protection with the
higher spring pressures."
Verification: Zinc: 1948/Phos: 1402
http://bobistheoilguy.com/forums/ubb...84#Post1461984
SHELL ROTELLA T MULTIGRADE
(http://www.shell.com/home/Framework?siteId=rotella-en&FC2=/rotella-en/html/iwgen/products/zzz_lhn.html&FC3=/rotella-en/html/iwgen/p
roducts/triple_protection_detail.html)
Grades: 15W40, 10W30
Claim: None stated on web
Verification: Shell Technical email 12/9/09: "Rotella T does meet both API CJ-4 and API SM requirements and still has ~ 1200 ppm
ZDDP . The reduction in ZDDP requirement is not an API specification, but an ILSAC GF 4 requirement."
COMMENT: At this point in time (5/2013) I do not believe this is correct; I believe the oil sold now does not have sufficient levels
of ZDDP.
VALVOLINE VR1 (http://www.valvoline.com/products/consumer-products/motor-oil/high-performance-motor-oil/6)
Grades: 20W50, 10W30
Claim: "High zinc/phosphorus provides extreme wear protection, including flat tappet applications."
Verification: 1300 - 1400 PPM ZDDP
http://www.valvoline.com/pdf/VR-1_Racing_Motor_Oil.pdf
NOTE: there are some real concerns with VR1 due to inconsistent test results.
Valvoline Specialty Racing Oil ("Not Street Legal")
(http://www.valvoline.com/products/consumer-products/motor-oil/racing-motor-oil/9)
Grades: 20W50
Claim: "High zinc/phosphorus provides extreme wear protection, including flat tappet applications."
Verification: 1300 - 1400 PPM ZDDP http://www.valvoline.com/pdf/Special...acing_Oils.pdf
VALVOLINE ROUSH FULL SYNTHETIC
(http://www.valvoline.com/products/consumer-products/motor-oil/high-performance-motor-oil/7)
Grades: 5W30, 5W50, 10W30, 10W40
Claim: "Provide longer lasting zinc/phosphorus anti-wear."
VALVOLINE RACING SYNTHETIC
(http://www.valvoline.com/products/consumer-products/motor-oil/high-performance-motor-oil/8)
Grades: 20W50, 10W30
Claim: "High zinc/phosphorus for extreme anti-wear, including flat tappets."
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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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