OODY GRAY IS NOW DRIVING a 1999 Mack® with an ET 460 engine, an Eaton 13-speed
transmission, and 386 Eaton rears. Upon acquiring the truck, Gray had the drive-train
filled with AMSOIL 75W-90 Gear Lube and the engine changed over to his old favorite -
AMSOIL Synthetic Heavy Duty Diesel and Marine 15W-40 Motor OIl. He also had a BMK-12
By-Pass Filtration system installed.
As of July 2003, Gray has over 330,000 miles on the engine, and has racked up 290,000
miles without an oil change. He has decided to change filters and take oil samples at
40,000-mile intervals. So far, the samples have shown that the oil has not needed to
be changed. Soot levels have also remained well within the Mack® recommended limits.
The truck is greased with AMSOIL products every 40,000 miles when it is time for a filter change.
Gray likes to point out that his fuel mileage is a constant 7 mpg, while other truckers
traveling under similar circumstances and with similar equipment average only 5.5 to
6 mpg. But he also knows that's just one of the many benefits AMSOIL has to offer.
And if you have time, he might be able to tell you a thing or two about extended drain