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They
Say Nothing Outperforms Mobil 1? Wrong! AMSOIL INC. set out to
examine the specifics of the overly broad "Nothing Outperforms..." Mobil
claim. AMSOIL 5W-30 Synthetic Motor Oil (ASL) and Mobil 1 SuperSyn 5W-30 Motor
Oil were analyzed in five key bench tests measuring motor oil performance: NOACK
volatility, flash/fire point, pour point, four ball wear and total base number
(TBN). As shown in the charts below, AMSOIL outperformed Mobil 1 in all five areas.  | NOACK
Volatility - 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,
increased oil consumption and excessive wear and emissions. A maximum of 15 percent
evaporation loss is allowable to meet the API SL and ILSAC GF-3 specifications.
As shown in the graph, AMSOIL 5W-30 Synthetic Motor Oil lost an extremely low
4.9 percent of its original weight during high-temperature service, maintaining
its superior protective and performance qualities,while Mobil 1 SuperSyn 5W-30
Motor Oil lost 9.17 percent of its original weight. |
 | Four
Ball Wear - The Four Ball Wear Test determines the wear protection properties
of a lubricant by measuring the wear scars produced by four metal balls in sliding
contact under the test parameters. The smaller the average wear scar, the better
the wear protection provided by the lubricant. As shown in the graph, AMSOIL 5W-30
Synthetic Motor Oil completed the Four Ball Wear Test producing a smaller wear
scar than the Mobil 1 SuperSyn 5W-30 Motor Oil. |
top  | Flash/Fire
Point - The Flash/Fire Point Test determines the lowest temperatures at which
application of a flame will cause lubricant vapors to ignite (flash point) and
sustain burning for five seconds (fire point). Lubricants with higher flash and
fire points exhibit more stable volatility characteristics and are safer to use
and transport. As shown in the graph, AMSOIL 5W-30 Synthetic Motor Oil has higher
flash and fire points than does Mobil 1 SuperSyn 5W-30 Motor Oil. |
 | Pour
Point - The Pour Point Test determines the lowest temperature at which a lubricant
flows. The lower a lubricant's pour point,the better protection it provides in
low-temperature service.As shown in the graph, AMSOIL 5W-30 Synthetic Motor Oil
has a lower pour point than Mobil 1 SuperSyn 5W-30 Motor Oil. |
 | Total
Base NumberTotal Base Number (TBN) is the measurement of a lubricant's reserve
alkalinity. The higher a motor oil's TBN, the more effective it is in handling
contaminants and reducing the corrosive effects of acids for an extended period
of time. As shown in the graph, AMSOIL 5W-30 Synthetic Motor Oil has a higher
TBN than Mobil 1 SuperSyn 5W-30 Motor Oil. |
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