Why
is it called the Mobil Synergy Fuel System?
‘Synergy’ occurs when the whole
is greater than the sum of its individual parts. With this definition in mind
and coupled with the help of ExxonMobil’s global fuel technology, Mobil
offers New Zealand motorists the Synergy range of innovative fuels. This new
family of fuels enables Mobil to meet the needs of every car, every driver,
every time, whilst also offering greater environmental responsibility.
What makes Mobil Synergy Fuels more eco-friendly?
Each fuel contains a multi-functional additive. One component of these additives
is
to clean up and keep clean your vehicle's fuel injection, intake valve and
combustion systems. This will in turn ensure that your fuel burns more cleanly
and efficiently and result in fewer exhaust pipe emissions. Please see the
sections on each Mobil Synergy Fuel for their individual benefits.
Why is it important to keep my engine's fuel injection,
intake valve and combustion systems clean?
Due to the inherent nature of combustion engine operation, all petrol engines
produce by-products. One of the main by-products is carbon. These by-products
can build up on your intake valves, fuel injectors, carburettors and other
fuel system components. The build up of these deposits lead to a reduction
in the fuel efficiency, power, performance and overall drivability of your
vehicle. It also increases the levels of harmful exhaust pipe emissions released
into the environment.
What
is Octane number?
Octane number is a measure of a fuel's ability to resist ‘knock’.
The octane requirement of an engine varies with compression ratio, geometrical
and mechanical considerations and operating conditions. The higher the octane
number the greater the resistance to knock. It is commonly referred to as
RON (eg. 95 RON).
What does RON stand for?
RON - stands for Research Octane Number and is measured using a laboratory
test engine. It is standard industry practice to differentiate grades of petrol
on the basis of their RON e.g. 95 RON, 91 RON and now 98 RON.
What is ‘engine knock’?
Knock is the rapping or pinging sound that may be heard in an engine during
high power output e.g. accelerating or climbing a hill, or when a vehicle
is carrying a heavy load.
How does knock occur?
Normally when the fuel/air mix in the combustion chamber is ignited by the
spark plug, the resultant flame front moves smoothly across the chamber consuming
fuel at a controlled rate while exerting steadily increasing downward push
on the piston. However if pressures and temperatures reach extreme levels
the fuel vapour ahead of the flame front ignites spontaneously causing a sudden
rise in pressure accompanied by knock. This results in a loss of power and
can lead to engine damage