Premium fuel refers to the octane number in gasoline, which is a function of the higher compression ratio
of an engine. If a performance engine is designed with
a higher compression ratio, it compresses the air-fuel
mixture within the cylinder more and gets more piston
movement and “work” out of the same unit of fuel.
This equates to better fuel economy, which is also
called work per gallon or mpg. The parameters of
compression ratio and octane rating are designed to work
together. The engine is like a symphony of air movement,
fuel spray pattern and piston movement all in timing with
the spark. This precisely controlled movement results
in a well-running engine. If the spark timing isn’t exact
(in spark-ignition gasoline engines), engine knock might
result in lower ef;ciency or, in some cases, engine damage. An engine must be designed to use higher octane
fuel to gain the advantages of using higher octane fuel.
In cases when an engine is under high load, such as
towing, higher octane fuel can be advantageous.
In most cases, however, it’s best to follow the octane
rating listed in a vehicle owners manual.
Related to this, AAA indicated it receives two main questions about Top Tier from its customers:
1. Is fuel detergency necessary for vehicles, or is it just a marketing ploy?
2. Am I “treating” my vehicle with premium fuel?
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Tank label included
with every gauge!
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718 Liquid Level Gauge
The 718 Liquid Level Gauge is designed for measuring
liquid level in an aboveground storage tank.
(Contact Customer Service for gallon, metric, and ullage options.)
Two models accommodate tanks up to 72” & 108”
Easy to calibrate
Gasoline-compatible models coming soon
The engine is like a symphony
of air movement, fuel spray
pattern and piston movement
all in timing with the spark. If
spark timing’s off, engine knock
might result in lower efficiency or