Aircraft Maintenance Technology November 2019 - 53

PRODUCT UPDATE

OVERDUE FOR AN OIL CHANGE?
Keep engines running smooth and avoid trouble in the
air by selecting the right oil while on the ground.
By Eavan McGrath

USING THE RIGHT PRODUCTS CAN HELP EXTEND
the lifespan of any piece of machinery, including the
engine of an aircraft. The worst problem that can arise is
being up in the air and having engine difficulty. Victory
AW 20W-50 from Phillips 66 helps defend against multiple problems that have the potential to limit engine
durability.
Tony Negri, Phillips 66 commercial product manager,
explained: "Victory AW 20W-50 was developed to fill
the need pilots had for a multigrade aviation piston
engine oil with Lycoming anti-scuff additive (LW-16702)
pre-blended in the proper concentration. This product
complements our Victory 100AW straight grade
with the same LW-16702 pre-blended."
Intended for year-round use
in piston engines, this
oil boosts performance
with easier cranking
and quicker circulation
at startup versus straightgrade oils, Negri said. It
also helps reduce the
warmup time needed
for the engine to run
efficiently.
"First introduced at
2019 EEA AirVenture in
July, Victory AW 20W-50
is the direct result of pilot
requests for a multigrade
engine oil that requires
no expensive top-treating. Lycoming Service
Bulletins 446E and 471B
and Service Instruction
1409C recommend the
use of LW-16702 antiscuff additive," Negri
added. "The advantage
of buying a product with

the correct additive pre-blended at the correct concentration is that it is significantly less expensive and
alleviates the worry about over- or under-treating when
doing it yourself."
Bringing quality oils to the market since the 1930s,
Phillips 66 has a history of improving the power of
flight. "Phillips 66 was the first company to introduce
the concept of multigrade oil to the aviation market in
1974 as a solution for Bonanza, who asked Phillips 66
to develop a product that would help with easier starts,
as their planes had to be started weekly to help control
moisture while sitting at the factory before delivery,"
Negri mentioned.
With years of developing continuous solutions,
Victory AW 20W-50 is composed of a conventional
base oil and ashless dispersant with LW-16702 antiscuff additive pre-blended to provide protection for
all Lycoming engines or where there is concern for
cam lifter wear. Multigrades use less bright stock
than their straight-grade counterparts, which results
in cleaner operation in the engine while lowering
the potential to form varnish precursors, Negri
described. The oil provides robust film strength
under high loads and at high temperatures to help
prevent wear.
Negri notes that Victory AW 20W-50 is not recommended for use during the break-in process. "The
use of oils with anti-scuff additives can impede the
break-in process. Our recommendations for break-in
continue to be X/C, multigrade with ashless dispersant; Type A, straight grade with ashless dispersant;
or Type M, multigrade mineral oil without ashless
dispersant," he explained.
For those who fly infrequently, proper care needs
to be taken. There is a possibility that not running
the airplane to normal operating temperature every
couple of weeks could lead to corrosion, as the
normal heat/cool cycle will introduce water to the
system which will form acids if not driven off.
Negri noted: "When not flying regularly, we

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Aircraft Maintenance Technology November 2019

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