They Say Nothing Outperforms Mobil
|AMSOIL INC. set out to examine the
specifics of the overly broad ďNothing Outperforms...Ē 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 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
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
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.
Point Test determines the lowest temperature at which a lubricant
flows.The lower a lubricantís 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
Total Base Number
Base Number (TBN) is the measurement of a lubricantís reserve alkalinity.
The higher a motor oilís 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.