Tow Test - Big Blocks VS. Diesels
The 6.5L turbodiesel gets great fuel economy, thankfully, since the cost of filling up can definitely come back and bite you in the buck. Most stations charged an average of $2.65 per gallon, but we paid as much as $2.95, whereas gas is right around $2.49. Both Suburbans have 42-gallon tanks, so the cruise range was around 650 miles for the diesel and only 380 for the big-block.
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