- Why does VP use Motor
Octane Numbers?
- Motor octane more accurately
represents a high performance or racing application. The motor octane
machine runs at a higher RPM, hotter temperature, and more timing, thus
putting more stress on the fuel. Do not be fooled by high research or
average (R+M/2) octane numbers.
-
How much Octane do I need?
- Only enough to stop preignition
and/or detonation. Remember there are other important factors in power
output than just octane. Octane is not the measure of the fuel's power
output, it is only a measure of its resistance to preignition and detonation
in an octane engine.
What is the highest octane rating a gasoline can have?- For research and motor octane
ratings the ASTM methods No. D2699-81 for the operation of the octane
engine gives a scale up to 120.3.
What type of 2-stroke oil should I use with VP?- All types of oils, petroleum,
synthetic blend, synthetic or bean oils will mix with VP. However, bean
oils will tend to separate below 35 degrees F in fuels with a specific
gravity of less than .730.
Why do plugs with VP gasoline look so lean?- Because the percentage of
the aromatic hydrocarbons in the fuel is relatively low compared to
other gasolines. These products have soot forming properties in gasoline.
Will an engine run cooler with VP?- Yes, C-12 and C-14 will obsorb
more heat than other gasolines and tend to cool the intake charge. This
is especially noticeable in 2-stroke applications.
What is the best way to store VP Racing Gasoline?- As long as the gasoline is
kept in a tightly sealed container, the storage is indefinite. These
gasolines contain olefinic hydrocarbons in negligible concentrations,
thus their tendency to form gums and varnishes is negligible. The gasoline
will not separate as its components are solvents of each other. Also,
don't expose the fuel to direct sunlight as the ultraviolet rays will
oxidize the lead.
Is VP Racing Gasoline made the same every time?- Yes, absolutely. For many
people this is one of the most important qualities of our fuels. If
there are any improvements in the fuel, we will inform you of the differences
and what to expect from these differences. We realize fuel is one of
the things a racer can't check, so we feel very responsiblel for quality
control. If you ever suspect you have a problem with our fuel, we will
be glad to analyze it for you.
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