-NO EQUAL IN THE WORLD--NO EQUAL IN THE WORLD-
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CASE
STUDY EQUIPMENT:
Big-Rig Tractor Trailer PROLONG
PRODUCT USED: Engine
Treatment Summary One heavy-duty truck was chosen from a fleet of
trucks to run a life test. The test
was begun 5 years ago, with the goal of reaching 1,000,000 miles.
The fleet is based in Ohio. Throughout the test, the engine oil was changed at
regular intervals as prescribed by the manufacturer.
Prolong was added at each oil change,
and the truck was driven in normal interstate commerce. When the truck reached the 1,000,000-mile mark, it
was brought in for service. The
crankcase oil pan was removed, the rod and main bearing caps were removed, and
the crankshaft was measured with a micrometer. Results There was no measurable wear, and the engine was
reassembled. Oil was added to the
crankcase, along with some more Prolong, and the truck was returned to service. Trucks of this vintage normally require a major
overhaul at about 500,000 miles. |
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