Improving Fuel Economy in a 6.5L Diesel

Volume 1 Issue 3 - 6.2/6.5 Issues and Answers

Like everyone else I know these days, I am looking for improved fuel economy from my turbo diesel GMC. It is a 1995 2500 4X4 6.5. My truck has the 3.73 axle and it is the automatic transmission. My baby is stone stock, except for big wheels and tires. In the driving I do, it gets 15 mpg overall, but I remember that it did better when new. I would be happy with 17 and happier with more. Any ideas?

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