While some may have suggested that it was "junk dumped on our shores," the more plausible speculation along those lines is that it may have been a mismatched product for the European market and the remaining stock is being re-labeled for a market in which it is more properly matched. Remember, the Castrol SLX 0w30 now being manufactured in Germany is called "new" on the MSDS and is amber, not green. I as well hope it is here to stay in it's current formulation and that I can eventually buy some, but only time will tell since no one at Castrol will confirm or deny anything to the satisfaction of anyone on this board. These are the factors driving the urge to accumulate mass quantities of the stuff.
GC 0w30, 3100 miles, 1995 Firebird Formula
- Thread starter Patman
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Please post a link to this MSDS or tell us where you got it. I contacted Castrol in Germany directly back in the Spring, and they sent me the latest PDS (product data sheet) on SLX. The color stated on that sheet is green. The also sent me the PDS on the "newest" Formula SLX oil, the SLX LongLifeII, and its color is also listed as green.
similar to my UOA of GC 0w-30, lead wear number reduction was the biggest improvement as compared to other quality synthetics. Something about this oil that reduces lead wear numbers. I guess viscosity can be a factor, dunno what else. But that is consistent with what I found. good report Patman !
G-Man II, it was e-mailed to me. If you will PM me your e-mail address I will be happy to forward it. I cut and pasted the composition part of it some weeks ago but it looses the formatting from the .pdf file and is not easy to read. I got the same product sheet as well. The MSDS is dated later than the product sheet.
[ October 16, 2003, 10:18 AM: Message edited by: doyall ]
[ October 16, 2003, 10:18 AM: Message edited by: doyall ]
Good numbers, low miles. Have you run one of the "better" dinos such as Pennz, or Chevron for 3K? I'm wondering.....
I would call the GC Fe numbers as compared Sch were a tie, but GC sure beat it in other areas at twice the price.
I would love to see 3K numbers on 4.50/qt ASL in your car....
I would call the GC Fe numbers as compared Sch were a tie, but GC sure beat it in other areas at twice the price.
I would love to see 3K numbers on 4.50/qt ASL in your car....
MolaKule
Staff member
Patman,
Where did the extra manganese come from? Were you using a fuel or octane booster?
Are you sure that's not 0.72 instead of 72?
[ October 16, 2003, 10:50 PM: Message edited by: MolaKule ]
Where did the extra manganese come from? Were you using a fuel or octane booster?
Are you sure that's not 0.72 instead of 72?
[ October 16, 2003, 10:50 PM: Message edited by: MolaKule ]
Doesn't Canadian gas still have manganese in it?
What's up ???
Are you sure these are %. and not PPM or some other number? I've always been concerned too.
I believe that they use I think it's called a IT or something like that SCAN to do the colors to determine the numbers, and the test they use is often skewed by the previous test a percentage, so if the previous test was HIGH or the three previuos were high, then your test will be high.
Besides you can tell these numbers when the oil starts to thicken or thin out, you know for sure the oil is "Going or moving" outa grade, when the oil does this, then it's wearing out, and your sample STAYED there just fine!
Patman
Staff member
Pablo, I've never run a conventional oil in this car, unless you count Maxlife, although my numbers were not as good.
I do believe Amsoil 5w30 would run pretty much identical numbers to this stuff, and if GC ever stops being sent here, next in line is going to be either Mobil 1 0w40 or Amsoil 5w30 (although I'm strongly leaning towards Amsoil)
I do believe Amsoil 5w30 would run pretty much identical numbers to this stuff, and if GC ever stops being sent here, next in line is going to be either Mobil 1 0w40 or Amsoil 5w30 (although I'm strongly leaning towards Amsoil)
Patman
Staff member
Canadian gas still has MMT in it, so that's where the manganese comes from. I wonder if manganese hurts or helps the wear numbers? Does it hinder or help the chances of doing long drain intervals?
The oxidation, nitration and sulfation numbers are always high from the lab I use and I don't believe them to ever be accurate, especially after I sent an early 740 mile sample of Schaeffer Oil last year and it showed 40% oxidation on it, which I seriously doubt was the case. As I mentioned higher up in this thread, Terry even told me he thinks the numbers in these three tests could be 2-3 times higher than they really are. If you look at the condition of the rest of the numbers, it can't be true that these three numbers would be so high.
[ October 17, 2003, 04:54 AM: Message edited by: Patman ]
The oxidation, nitration and sulfation numbers are always high from the lab I use and I don't believe them to ever be accurate, especially after I sent an early 740 mile sample of Schaeffer Oil last year and it showed 40% oxidation on it, which I seriously doubt was the case. As I mentioned higher up in this thread, Terry even told me he thinks the numbers in these three tests could be 2-3 times higher than they really are. If you look at the condition of the rest of the numbers, it can't be true that these three numbers would be so high.
[ October 17, 2003, 04:54 AM: Message edited by: Patman ]
Obviously superior numbers. If the car in question had alot of WOT time, including something equating to 9 full throttle passes on a drag strip, then clearly I was wrong. (The WOT issue does make for an honest difference.)quote:
Originally posted by buster:
Ok, here it is. Amsoil 5w30 same car. 12k mile oil use.
[ October 17, 2003, 07:31 PM: Message edited by: pscholte ]
How long have you used the LAB ?
Maybe it's a new process or standard...
Sometimes they show numbers or all the time do they show numbers for oxidation, nitration and sulfation ?
Patman
Staff member
I've used Wearcheck for about a year now, and they always give me oxidation, nitration and sulfation.
For either a LT1 or LS1 these numbers are great!! I would like to see how this oil does for a 5000-7500 mile OCI in a LS1!!
Always? What are the lowest numbers?
Mine only do sometimes, the rest are just lines.
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