Home » Public Forums » GMCnet » [GMCnet] GMC engine oil
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| Re: [GMCnet] GMC engine oil [message #288033 is a reply to message #288025] |
Tue, 29 September 2015 17:57   |
bwevers
Messages: 597
Registered: October 2010
Location: San Jose
Karma: 5
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Senior Member |
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This was on the Corvette forum:
Quaker State 10W30 Defy, API SL synthetic blend (lab tested 2012)
NOTE: An API SL rating is for 2004 and older automotive engines. This rating was replaced by the API SM rating at the end of November 2004, when the 2005 models were already available.
Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 170 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 8 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2652 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2830 ppm
Zinc = 1221 ppm (anti-wear)
Phos = 955 ppm (anti-wear)
Moly = 99 ppm (anti-wear)
Total anti-wear = 2275 ppm
Potassium = 4 ppm (anti-freeze corrosion inhibitor)
Sodium = 0 ppm (anti-freeze corrosion inhibitor)
TBN = 6.5 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or 9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.7 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil's thickness
Bill Wevers GMC49ers, GMC Western States
1975 Glenbrook - Manny Powerdrive, OneTon
455 F Block, G heads
San Jose
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| Re: [GMCnet] GMC engine oil [message #288035 is a reply to message #288033] |
Tue, 29 September 2015 18:15 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Bill,
Thanks!
I'm not a fan of synthetic oil for the 403 or 455 Olds engines
I prefer 15W-40 for our 403 or 455 Olds engines
Zinc, Phos, and Moly levels look OK to me
Regards,
Rob M.
The Pedantic Mechanic
-----Original Message-----
From: Bill Wevers
This was on the Corvette forum:
Quaker State 10W30 Defy, API SL synthetic blend (lab tested 2012)
NOTE: An API SL rating is for 2004 and older automotive engines. This rating was replaced by the API SM rating at the end of
November 2004, when the 2005 models were already available.
Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 170 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 8 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2652 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2830 ppm
Zinc = 1221 ppm (anti-wear)
Phos = 955 ppm (anti-wear)
Moly = 99 ppm (anti-wear)
Total anti-wear = 2275 ppm
Potassium = 4 ppm (anti-freeze corrosion inhibitor)
Sodium = 0 ppm (anti-freeze corrosion inhibitor)
TBN = 6.5 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or
9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.7 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil's
thickness
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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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| Re: [GMCnet] GMC engine oil [message #288036 is a reply to message #288035] |
Tue, 29 September 2015 19:14 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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USAussie wrote on Tue, 29 September 2015 16:15Bill,
Thanks!
I'm not a fan of synthetic oil for the 403 or 455 Olds engines
I prefer 15W-40 for our 403 or 455 Olds engines
Zinc, Phos, and Moly levels look OK to me
Regards,
Rob M.
The Pedantic Mechanic
-----Original Message-----
From: Bill Wevers
This was on the Corvette forum:
Quaker State 10W30 Defy, API SL synthetic blend (lab tested 2012)
NOTE: An API SL rating is for 2004 and older automotive engines. This rating was replaced by the API SM rating at the end of
November 2004, when the 2005 models were already available.
Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil, certain gasket materials and dirt can also add to this number)
Boron = 170 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Magnesium = 8 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Calcium = 2652 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Barium = 0 ppm (detergent/dispersant, anti-deposit buildup/anti-sludge)
Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2830 ppm
Zinc = 1221 ppm (anti-wear)
Phos = 955 ppm (anti-wear)
Moly = 99 ppm (anti-wear)
Total anti-wear = 2275 ppm
Potassium = 4 ppm (anti-freeze corrosion inhibitor)
Sodium = 0 ppm (anti-freeze corrosion inhibitor)
TBN = 6.5 (Total Base Number is an acid neutralizer to prevent corrosion. Most gasoline engine motor oils start with TBN around 8 or
9. And in use, this becomes depleted over time as mileage accumulates)
Viscosity (cSt at 100*C) = 11.7 (cSt range for SAE 30 is 9.3 to 12.4) And cSt (centistokes) in general terms, represents an oil's
thickness
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Yeah but if the current batch of oil is SN rated the zink and phos may be less then the SL rating
Roy Keen
Minden,NV
76 X Glenbrook
[Updated on: Tue, 29 September 2015 19:26] Report message to a moderator |
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| Re: [GMCnet] GMC engine oil [message #288039 is a reply to message #288025] |
Tue, 29 September 2015 20:24 |
<rallymaster
Messages: 361
Registered: May 2014
Karma: 2
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Senior Member |
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Thanks, Bill, I googled for over an hour, and didn't find that.
Looks good to use in our coaches. Easy to find on the shelf, too, if
it's there. Bright Red.
ron
On Tue, 29 Sep 2015 16:57:10 -0600 Bill Wevers writes:
> This was on the Corvette forum:
>
> Quaker State 10W30 Defy, API SL synthetic blend (lab tested 2012)
> NOTE: An API SL rating is for 2004 and older automotive engines.
> This rating was replaced by the API SM rating at the end of November
> 2004, when the
> 2005 models were already available.
>
> Silicon = 3 ppm (anti-foaming agent in new oil, but in used oil,
> certain gasket materials and dirt can also add to this number)
> Boron = 170 ppm (detergent/dispersant, anti-deposit
> buildup/anti-sludge)
> Magnesium = 8 ppm (detergent/dispersant, anti-deposit
> buildup/anti-sludge)
> Calcium = 2652 ppm (detergent/dispersant, anti-deposit
> buildup/anti-sludge)
> Barium = 0 ppm (detergent/dispersant, anti-deposit
> buildup/anti-sludge)
> Total detergent/dispersant (anti-deposit buildup/anti-sludge) = 2830
> ppm
> Zinc = 1221 ppm (anti-wear)
> Phos = 955 ppm (anti-wear)
> Moly = 99 ppm (anti-wear)
> Total anti-wear = 2275 ppm
> Potassium = 4 ppm (anti-freeze corrosion inhibitor)
> Sodium = 0 ppm (anti-freeze corrosion inhibitor)
> TBN = 6.5 (Total Base Number is an acid neutralizer to prevent
> corrosion. Most gasoline engine motor oils start with TBN around 8
> or 9. And in use,
> this becomes depleted over time as mileage accumulates)
> Viscosity (cSt at 100*C) = 11.7 (cSt range for SAE 30 is 9.3 to
> 12.4) And cSt (centistokes) in general terms, represents an oil's
> thickness
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
Ron & Linda Clark
North Plains, ORYGUN
78 Eleganza II
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| Re: [GMCnet] GMC engine oil [message #288070 is a reply to message #288025] |
Wed, 30 September 2015 16:06 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Shell also makes a synthetic Rotella. For some time, it was only available at WalMart, though now I see it at Advance as well.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] GMC engine oil [message #288073 is a reply to message #288070] |
Wed, 30 September 2015 17:45 |
Kingsley Coach
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
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Senior Member |
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Mark
"... For others, like me, that have the attention span of a chicken..."
You startin' a club? Sign me up !
Mike in NS
On Wed, Sep 30, 2015 at 6:06 PM, Johnny Bridges wrote:
> Shell also makes a synthetic Rotella. For some time, it was only
> available at WalMart, though now I see it at Advance as well.
>
> --johnny
> --
> '76 23' transmode Norris upfit
> Braselton, Ga.
>
> "Sometimes I wonder what tomorrow's gonna bring when I think about my
> dirty life and times" --Warren Zevon
>
> _______________________________________________
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> Unsubscribe or Change List Options:
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>
--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
Life is too short to hold a grudge; slash some tires and call it even !
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| Re: [GMCnet] GMC engine oil [message #288123 is a reply to message #288118] |
Fri, 02 October 2015 09:40 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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Michael Leipold wrote on Fri, 02 October 2015 06:37Yes bottom line, the author is sold on Rotella T6 for pre-catalytic converter designed engines.
He iterates engine design and not year of vehicle since the Jeep inline 6 design did not change much over the years.
I was at Napa yesterday, they sell the T6 for $20.99 a gallon, plus they are having their 20% off bucket sale.
Making it $16.72 a gallon if you put it in the $3 bucket, who doesn't need another bucket?
And Shell has a $5 rebate per gallon...
$11.72 a gallon after rebate 
Wish I had waited to buy it.
Maybe it's time for my semi annual oil change !
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: [GMCnet] GMC engine oil [message #288124 is a reply to message #288118] |
Fri, 02 October 2015 10:15 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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Owned a few jeep 6 cylinders. and I abused one cherokee for over 100k miles. That engine does not care what oil is in it, or how often you change the oil, so I am not sure i can go off a jeep cherokee forum as to what is the best oil.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: [GMCnet] GMC engine oil [message #288127 is a reply to message #288025] |
Fri, 02 October 2015 12:36 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I agree. I have 220,000 on my XJ with no symptoms of wear or oil consumption using 10w-30 Dino oil at about 3500 mile intervals. That said I think T6 is good stuff and run that in the 455.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] GMC engine oil [message #288137 is a reply to message #288025] |
Fri, 02 October 2015 19:30 |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
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Senior Member |
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I'll pile on and add that my 230,000 mile XJ runs like a top, though I've been running Mobil 1 in it since 121,000 miles when I bought it. I think it would hold together if I was running olive oil in it though... that's one tough motor!
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
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