Why not to run Amsoil 0w-30 in a high hp LS2!!
10-05-2005, 01:47 PM
#1
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Why not to run Amsoil 0w-30 in a high hp LS2!!
http://theoildrop.server101.com/ubb/...c;f=3;t=002942
Hi, Series 2000 0w-30 is now only 10.4 centistokes. It's on the thin side to be more fuel efficient, much like Mobil 1. I would not run this oil in a high powered corvette. German Castrol would be the only 0w-30 I would use, otherwise a good 5w-40 would be a much better choice.
The bearings in this car are taking a beating!! Notice the Pb. The lab also indicated he might have to change to a 40w viscosity oil. Amsoil has followed Mobil 1 and made all their 30wt viscosity oils ACEA A5 rated. This means they won't have the high temperature shear ability of 3.5. Fine for normal to semi-hard driving, but not racing IMHO> 600HP in this engine calls for a 5w-40 or Redline oil.
Hi, Series 2000 0w-30 is now only 10.4 centistokes. It's on the thin side to be more fuel efficient, much like Mobil 1. I would not run this oil in a high powered corvette. German Castrol would be the only 0w-30 I would use, otherwise a good 5w-40 would be a much better choice.
The bearings in this car are taking a beating!! Notice the Pb. The lab also indicated he might have to change to a 40w viscosity oil. Amsoil has followed Mobil 1 and made all their 30wt viscosity oils ACEA A5 rated. This means they won't have the high temperature shear ability of 3.5. Fine for normal to semi-hard driving, but not racing IMHO> 600HP in this engine calls for a 5w-40 or Redline oil.
Last edited by NEO1; 10-05-2005 at 01:54 PM.
10-05-2005, 02:15 PM
#2
Le Mans Master
This might be a reason not to run ANY xW-30 motor oil in an engine with a heavy dose of NO2. And it might be a reason to find xW-30 oils that tend towards 12 cSt in operating viscosity (up from the 10.2s we see in M1) if you are going to track the car. I don't see any particular reason to isolate the wear to AmsOil.
I might also note that the wear (seen in the copper and lead numbers) is only about 4X worse than normal. This, in my opinion, might not be all that bad for an engine with a heavy dose of NO2 used almost exclusively on the track.
All in all,it shows that the oil used in everyday applications and the oil that should be used on a track, might not be all that "similar".
I might also note that the wear (seen in the copper and lead numbers) is only about 4X worse than normal. This, in my opinion, might not be all that bad for an engine with a heavy dose of NO2 used almost exclusively on the track.
All in all,it shows that the oil used in everyday applications and the oil that should be used on a track, might not be all that "similar".
10-05-2005, 02:19 PM
#3
Le Mans Master
Ok, humor me, why on earth would I change over because of this information vs 20 years of using Mobil One and all of GM's resources telling me Mobil One is preferred. Why would I go to Redline and spend twice the money and spend two days driving around trying to find out who handles it, that should be clue enough.
10-05-2005, 04:24 PM
#5
Race Director
I switched from 0W-40 M1 on a current vehicle to 5W-40 Amsoil Euro spec. I don't have the test results for the Amsoil, but I wasn't impressed with M1 and I don't like the 0W rating for my vehicles in Texas. I don't need the cold pour/flow advantage of 0W-xx when the lowest it gets around here is just below freezing maybe a few times a year(cold pour on 5W-40 Amsoil being well below -50 degrees F). I'm not aware of any other advantage of a 0W-xx oil.
Todd
Todd
10-05-2005, 04:55 PM
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It's not an Amsoil issue, but rather a viscosity issue as mitch alluded to. The Amsoil 0w-30 is now as thin as Mobil 1, and that was my point. Mobil 1 and Amsoil are great for these engines. But pushing out 600 hp's is a bit too much for this grade of Mobil and Amsoil. 
10-05-2005, 07:08 PM
#7
Le Mans Master
Originally Posted by NEO1
But pushing out 600 hp's is a bit too much for this grade of Mobil and Amsoil.
10-06-2005, 08:26 PM
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Why not Amsoil Oil
Who's kicken Aston Martin and Ferrari's *** these days? Seems to me that the Corvette racing team, who has won so many 24 hr Le Mans races lately has a pretty good idea of what oil is working for them. I say why screw with the success of them and us using extended performance Mobil One. My only problem with using Mobil 1 for many years is that the rest of the car wears out long before my engines have.
10-06-2005, 09:54 PM
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Why not to run Amsoil 0w-30 in a high hp LS2!!
At hot idle, the oil pressure warning indicator may come on.
Last edited by calemasters; 10-09-2005 at 10:35 AM.
10-11-2005, 10:43 AM
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Mobil custom formulates oils for racing teams and while the technology is similar, it's not the same oil being sold at Walmart. The oils these teams are using have much higher antiwear additives.
10-11-2005, 11:34 PM
#11
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I was considering using the new Pennzoil Platinum 5W 30 in my stock LS2 in lieu of the standard Mobil factory fill.
Anyone know how it stacks up compared to Mobil?
Anyone know how it stacks up compared to Mobil?
Last edited by Deep Silver C6 Z51; 10-12-2005 at 12:01 AM.
10-12-2005, 12:26 AM
#13
Premium Supporting Vendor
Originally Posted by NEO1
Mobil 1 and Amsoil are great for these engines.
Can I quote you on that one?
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10-16-2005, 11:52 AM
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The Pennzoil Platinum appears to be a very good oil. It is a mix of Group III/IV and V basestocks. Nothing wrong with that at all and in time you'll start to see more Group III+ and GTL basestocks as they are approaching PAO in performance but less then 1/2 the cost. Pennzoil Platinum is much like Amsoil and Mobil 1 in that it's on the thin side for a 30wt oil for better fuel efficiency. I personally would run a good 5w-40 in a high HP LS2. Something like a Mobil 1/Amsoil/Redline 5w-40.
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