Here is some info on Amsoil Vs. several other brands.
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=8266
Info on Amsoil Vs. Redline
The test results below were obtained by an independent lab. The 4-ball wear test is a standard ASTM test for determining a lubricants ability to prevent wear. The test is torturous to accelerate wear and produce wear scars between moving ball bearings under load, so a determination of long term wear prevention can be assessed. AMSOIL produces the smallest wear scars and provides wear protection SUPERIOR to all other oils, whether conventional or synthetic! It actually SLOWS DOWN the wear and aging in your engine and will make it last much longer than normal, not to mention significantly better performance and fuel economy.
For additional comparison info, I have included the following chart with the most recent results of the 4-Ball Wear Test for AMSOIL Synthetic 20W-50 (TRO) and Redline 20W-50.
AMSOIL Synthetic 20W-50 (TRO) outperforms Redline 20W-50 in the 4-Ball Wear Test.
The 4-Ball Wear Test is a good indication of the wear protection provided by an oil under severe conditions. The smaller the wear scar, the better the protection.
Four-Ball Wear Test (ASTM D4172)
60 kg pressure @ 150°C, 1800 RPM, 1 hour
As Tested February, 2002
Oil Tested
Wear Scar
AMSOIL Series 2000 20W-50 (TRO)
.44 mm
Redline 20W-50
.73 mm
If you have any other questions, PLMK.
Thanks! John
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) and all of my oil changes were done by the dealer for free with Castrol GTX dino. I'm a member of the the S2000 owners group S2K International, and they promote Red Line synthetic fluids. Since I can't get the free oil changes for the S2K anymore, I was planning on doing my own oil and filter changes from now on with Red Line synthetic. Of course L.O.S.T. KJ promotes Amsoil fluids. My Liberty CRD only has 1100 miles, and I'm planning on doing my own oil and filter changes starting at 6000 miles. My question is.....Is there a significant difference between Red Line and Amsoil? Or are both good, premium lubricants i.e. you can't go wrong with either? Does anyone have experience with both?
