Long ago I was involved with servicing of diesel trucks and was astounded at the lack of fuel mileage. Fuel was cheap and management did not seem to care as it was part of the cost of doing business. Today with fuel costs once again on the rise, increasing big rig fuel efficiency has got to offer some serious rewards if executed well across a large fleet.
One thing not mentioned was the application of smaller high efficiency alternators. Another item was the ceramic coating of wheel bearings. Another item of interest might be the special coatings applied to the transmission and differential gears to make them far more slippery. That combined with the synthetic lubricants might make for some nice improvements.
Best of luck with your fuel savings program and keep us informed as to what you do and how well it works.
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