Castrol specs for SL formulation

Patman

Staff member
Messages
22,012
Location
Guelph, Ontario
I emailed Castrol asking for them to send me the specs on their oils under the SL formulation and I got them in snail mail today. I'm not all that impressed. I will post the specs for their 10w30 oils (if anyone wants the other viscosities you can ask and I'll type them later, it's just too much typing all at once) [Smile] Castrol GTX 10w30 Vis at 100c-10.7 VI-142 HTHS-3.1 Flash is 415F Pour is -30c Zinc-0.11% Phos-0.10% Castrol Syntec Blend 10w30 Vis at 100c-11.5 VI-138 HTHS-3.1 Flash is 415F Pour is -33c Zinc-0.11% Phos-0.10% Castrol High Mileage 10w30 Vis at 100c-12.0 VI-149 HTHS-3.3 Flash is 415F Pour is -30c Zinc-0.11% Phos-0.10% Castrol Syntec 10w30 Vis at 100c-10.0 VI-159 HTHS-3.1 Flash is 450F Pour is -36c Zinc-0.11% Phos-0.09% I find it especially sad how the Syntec Blend doesn't look any better than the regular GTX, yet at a higher cost.
 
Messages
2,095
Location
IL
I just emailed them also, about GTX because I was curious why its consumption was much lower than Mobil1. And I asked about the NOACK and if they had moly and they essentially avoided those questions as you can see. And so obviously there is more to consumption than flash and NOACK.
code:
  
Thank you for contacting Castrol regarding GTX Conventional Motor Oil.

The Typical Inspection Data for all GTX grades appears below.  

The NOACK 
volatility requirement for ILSAC GF3 is maximum 15% burn-off for
all grades of motor oil.  All 
Castrol grades meet the GF3 requirements.  
As far as formulary, please
understand that this is proprietary 
information.

CASTROL GTX
                        TYPICAL PROPERTIES
SAE Grade
Method
5W-20
5W-30
10W-30
10W-40
20W-50

API Service 
SL
SL
SL
SL
SL

ILSAC

GF-3
GF-3
GF-3


Specific Gravity, 60°F ASTM D-1298
0.857
0.858
0.869
0.874
0.882
Pounds per Gallon
7.14
7.15
7.24
7.28
7.35
Viscosity, cSt 100°C ASTM D-445
8.8
10.7
10.7
14.2
17.6
Viscosity, cSt 40°C ASTM D-445
50
63
72
100
153
Viscosity Index ASTM D-2270
158
160
142
150
128
Low Temperature (ºC) 
Cranking  Viscosity, cP max ASTM D-5293
<6600 (-30C)
<6600 (-30C)
<7000 (-25C)
<7000 (-25C)
<9500 (-15C)
Low Temperature (ºC) 
Pumping Viscosity, cP max ASTM D-4684
60,000 (-35C)
60,000 (-35C)
60,000 (-30C) 
60,000 (-30C)
60,000 (-20C)
High Temperature High Shear 
Rate Viscosity, cP @ 150° C CEC L-36-A-87
2.8
3.1
3.1
3.7
4.0
Flash Point, COC, °F(°C) ASTM D-92
400(204)
400(204)
415(213)
415(213)
440(227)
Fire Point, COC, °F(°C) ASTM D-92
430(221)
430(221)
445(229)
445(229)
470(243)
Pour Point, °C max ASTM D-5950
-30
-33
-30
-30
-21
Zinc % wt ASTM D-4951
0.11
0.11
0.11
0.11
0.09
Phosphorus % wt ASTM D-4951
0.10
0.10
0.10
0.10
0.08


Once again, thank you for contacting us. We trust that the information
provided is to your satisfaction.  Please 
contact us if we can help again 
in the future.



Lynn Hansen

Reference: 120809

 

Patman

Staff member
Thread starter
Messages
22,012
Location
Guelph, Ontario
Why can't they just answer a simple question like "is there moly in your oil?" It's not as if anyone is going to just go out and take that info and make their own oil! So why keep it secret? If someone really needs the info, they can spend $25 and have a virgin sample analyzed, so as a company, why not just answer the consumers questions and give out this proper info? [Confused]
 
Messages
1,874
Location
Ocala, Florida
Patman, Most companies who pay minimal wages for someone to answer phones have an answer sheet to respond with and have no real idea themselve what you may be reffering to. The true engineers are in the background and are not the ones you get to talk with. I contacted texaco one time and when discussing items listed about oil, they had no idea, and after a bit, I finally got to some one with some idea of what was going on, I THINK? maybe? oh well, seems that is the norm and the person that responded to your question about moly in that oil doesn't know what exactly you're taking about.
 
Messages
39
Location
Atlanta
I got Castrol NA to send me data sheet on Syntec and their 10W-30 read like this: Spec. Grav. 60 F 0.85 Vis., cSt @40 C (ASTM D445) 70 Vis., cSt @100 C 11.5 HTHS 3.5 VI 159 Flash Point 455 F(235C) Pour Point -27F (-33C) Thats the main stuff. Theres more I can post if anyone needs/wants it.
 
Top