Bruce Nunnally Posted March 26, 2014 Report Share Posted March 26, 2014 I currently drive a 2008 Cadillac STS-V with 4.4L Supercharged V8. I thoroughly enjoy owning it. The current EPA rating for this model is 13 mpg city, 19 mpg highway. That equates to 6.7 gallons per 100 miles. So for my frequent 300 mile jaunts, 20.1 gals would be needed without refueling the 18 gal tank. See the issue? Read more: http://caddyinfo.com/wordpress/cadillac-cruising-the-300-mile-tour/ Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
KHE Posted March 26, 2014 Report Share Posted March 26, 2014 Definitely a small fuel tank but it was probably the largest one they could fit in there. My 2013 Silverado pickup has a 26 gallon tank and I think i's rated at 21 MPG on the highway. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
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