ACtion Magazine - March 2017 - 28
What you don't know can hurt your diesel engine
The base lowers the freeze point and raises the boiling
point of the coolant so it can transfer heat in more extreme
temperatures than water alone can handle.
That being said, there is no universal color convention in the industry, and coolants of the same color are not
guaranteed to be similar in composition or performance.
Instead of color, focus on performance standards, base
type, and inhibitors.
28
ACTION * March 2017
Performance classification refers to a set of minimum
testing standards or OEM specifications. ASTM D6210 is
the American Society for Testing and Materials' standard
for glycol-based heavy-duty engine coolants and it evaluates a product's ability to protect against liner pitting and
scale. OEM standards go a step further to meet the needs of
their specific engines, applications, and warranties. Check
the packaging or product brochure to make sure your coolant meets your engine manufacturer's requirements.
Type classifications can be made based on the coolant
base type and inhibitor chemistry. EG-based coolants work
in a wide range of climates and account for more than 90%
of heavy-duty coolant sold in North America (propylene
glycol is a less toxic alternative). Most OEMs require that
the base be present in a concentration between 40 to 60%;
you can check this in the field using a refractometer.
Finally, there are three terms to describe inhibitor
chemistry: conventional, hybrid, and OAT (Organic Additive Technology).
Most conventional coolants come fully formulated with
the proper mix of water, glycol, and SCAs and should meet
ASTM D6210. This eliminates the need to "pre-charge"
the coolant with supplemental coolant additives (SCAs).
Heavy-duty OAT coolants use organic acids like benzoic, sebacic, and adipic; OAT coolants don't require SCAs
and provide extended service intervals. Hybrid (HOAT)
coolants typically have a longer life and service interval
than conventional coolants but require more maintenance,
which may include adding SCAs.
Both are initially more expensive than conventional
coolant but cost less to maintain over the life of the vehicle. An extended service interval coolant typically only
needs additive replenishment and filter change once per
year, compared to conventional coolants with standard
service intervals where the additive and filter are replenished at each oil change interval.
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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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