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sludge
Posted by davidgmills (more from davidgmills) on Fri, 11 Mar 2005 11:16:39
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After having two Saabs have engine failure due to sludge, I have changed oil and gone to Amsoil because it is by far the best oil I have come across when it comes to the ability to resist heat causing sludge buildup.
The proof is in a test is called a NOACK volitility test. This is from an Amsoil website:
NOACK Volatility (ASTM D-5800)
The NOACK Volatility Test determines the evaporation loss of lubricants in high temperature service. The more motor oils vaporize, the thicker and heavier they become, contributing to poor circulation, reduced fuel economy and increased oil consumption, wear and emissions. A maximum of 15 percent evaporation loss is allowable to meet API SL and ILSAC GF-3 specifications. As shown in the graph, AMSOIL 10W-30 Synthetic Motor Oil outperformed its nearest competitor by over 30 percent.
The extremely low volatility of AMSOIL Synthetic 10W-30 Motor Oil allows it to maintain its superior protective and performance qualities throughout extended drain intervals, even when faced with severe operating temperatures. In addition, oil consumption and emissions are minimized and fuel efficiency is maximized.
You can see this and other tests and a graph comparisons here:
http://www.syntheticwarehouse.com/Amsoil%20compared.htm
It is interesting to note that in this test AMSOIL lost only 4.86 percent of its weight to evaporation while Mobil 1 lost nearly twice that much at 8.92 percent. Regular Valvoline lost 12.18 percent.
Disclosure. I do not sell automotive products of any kind and have no financial interest in any automotive products.
posted by 24.106.14...
Posts in this Thread:
- sludge, davidgmills, Fri, 11 Mar 2005 11:16:39 <-- Viewing This Message
- Amsoil is fine but..., jeff, Mon, 14 Mar 2005 04:18:56
- Re: sludge, Hueydvr1, Sat, 12 Mar 2005 18:44:37
- Re: sludge, davidgmills, Sun, 13 Mar 2005 05:39:47
- Re: sludge, Herb Hirsch , Fri, 11 Mar 2005 13:30:36
- Re: sludge, Dick in Falls Church, Fri, 11 Mar 2005 20:35:47
- Re: sludge, davidgmills, Fri, 11 Mar 2005 13:54:29
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