ACtion Magazine - March 2017 - 32
What you don't know can
hurt your diesel engine
Is your recycled coolant at full strength?
By Stephen Petit
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32
ACTION * March 2017
More people are using recycled heavy-duty diesel engine coolant, and
for good reason. It's less expensive, it saves a non-renewable resource
(ethylene glycol is a natural gas derivative), and it reduces the amount of
hazardous waste a shop generates.
Formulated properly, recycled coolant should deliver the performance
you expect. Key phrase: formulated properly.
"The recycling process sifts out contaminants but it can also remove
important chemical additives and extenders," says Frank Burrow, manager of warranty and product support at Red Dot Corp., which makes HVAC
systems and components for commercial vehicles and heavy equipment.
Without them, a concentration of water and EG alone can attack metals and other materials in the system.
"One of the first places you'll see premature wear is in the coolant
hose," Burrow says. "Tiny cracks can develop on the hose interior, typically near the hose ends, and allow the coolant to reach and degrade the
reinforcement yam."
As the hose deteriorates, it sheds debris into the coolant. "Now you
not only have a weak point in the hose, there's foreign material circulating through the system," Burrow says, "not to mention the risk of even
more critical wear and tear
deeper inside the engine."
If you buy recycled
coolant, talk to your supplier about his methods for
mixing in the additive packages. A reputable recycler
will do it in a consistent,
temperature-controlled environment.
If you mix in additives
yourself, double-check to
make sure you're doing it
properly. Otherwise, the
chemical additives won't
stay in suspension and
you'll get an uneven concentration as you draw
coolant from the drum.
"It's like adding sugar to
cold coffee," Burrow says.
"You won't taste the sweetness until the last swallow
because all the sugar is on
the bottom." ❆
Improperly mixed coolant can speed up wear
on materials like coolant hose, sending foreign
material circulating through the system.
http://www.vdo.com/usa
Table of Contents for the Digital Edition of ACtion Magazine - March 2017
Outlook
Service Port
Leonard's Law
Virtual View
Cooling Corner
Member Profile
Radiator service and repair
What you don't know can hurt your diesel engine
Industry News
Association News
New Products and Services
Last Watch
ACtion Magazine - March 2017 - Cover1
ACtion Magazine - March 2017 - Cover2
ACtion Magazine - March 2017 - 3
ACtion Magazine - March 2017 - 4
ACtion Magazine - March 2017 - 5
ACtion Magazine - March 2017 - Outlook
ACtion Magazine - March 2017 - 7
ACtion Magazine - March 2017 - Service Port
ACtion Magazine - March 2017 - 9
ACtion Magazine - March 2017 - Leonard's Law
ACtion Magazine - March 2017 - 11
ACtion Magazine - March 2017 - Virtual View
ACtion Magazine - March 2017 - 13
ACtion Magazine - March 2017 - Cooling Corner
ACtion Magazine - March 2017 - 15
ACtion Magazine - March 2017 - Member Profile
ACtion Magazine - March 2017 - 17
ACtion Magazine - March 2017 - 18
ACtion Magazine - March 2017 - 19
ACtion Magazine - March 2017 - Radiator service and repair
ACtion Magazine - March 2017 - 21
ACtion Magazine - March 2017 - 22
ACtion Magazine - March 2017 - 23
ACtion Magazine - March 2017 - 24
ACtion Magazine - March 2017 - 25
ACtion Magazine - March 2017 - What you don't know can hurt your diesel engine
ACtion Magazine - March 2017 - 27
ACtion Magazine - March 2017 - 28
ACtion Magazine - March 2017 - 29
ACtion Magazine - March 2017 - 30
ACtion Magazine - March 2017 - 31
ACtion Magazine - March 2017 - 32
ACtion Magazine - March 2017 - Industry News
ACtion Magazine - March 2017 - 34
ACtion Magazine - March 2017 - Association News
ACtion Magazine - March 2017 - New Products and Services
ACtion Magazine - March 2017 - 37
ACtion Magazine - March 2017 - Last Watch
ACtion Magazine - March 2017 - Cover3
ACtion Magazine - March 2017 - Cover4
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