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<p>[QUOTE=&quot;CDL1968, post: 3702170, member: 96859&quot;]If you ever get 6 mpg of less on any truck you sould have the truck checked. It may have an issue with the computer or a sensor. The exception would be if your truck is more that 15 years old or you doing heavy haul like over 150K or 175K pounds gross.</p><p><br /></p><p>Most companies and my company will fire a driver for having 6 mpg on a regular bases. With the on board computer I can tell if a driver is waisting fuel with excessive idle time or the the driver just doesnt know how to shift or if these is an issue with the engine. If the truck needs repair I get it repaired. The driver is the issue I first give a Letter of Notice putting the driver on notice and explain what the issue is. The second time I give a Letter of Correction again puuting the driver on notice with an expliantion of what they are doing wrong and a deadline for the driver to make the correction. Thrid time I release the driver from employment.</p><p><br /></p><p>All my trucks are less than 5 years old and normally haul 79K - 80K gross all the time because we are bulk and get paid by the ton or gallon. All my truck GenPaks (Mini-diesel) generators to keep drivers comfortable during none driving hour. As a fleet we strive for 6.8 mpg and normally hover between 6.8 and 6.9 mpg. One (1) mpg over a year or five years can mean a big differance. Anything under 6 mpg should be throwing up red flags at dispatch and anything under 5.8 - 5.7 should be blinking red on the screen in the companys Shop Dept.</p><p><br /></p><p>Turbo pressure is a nice toy on your dash but its useless. It only help you see when a turbo isnt working well. Turbos unlike Ultra-Chargers are not controled by the driver. Turbos work by the exhaust from the engine spinning an air intake fan therefore increasing the fuel to air mixture in the engine which increases fuel effiency and horsepower.[/QUOTE]</p><p><br /></p>

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