Zunardo;1837901 wrote:but I never knew anything about it getting better MPG than gas in a sedan. Anyone know more about that?
I've been driving diesel trucks for years, pound for pound diesels generally do better in fuel economy. The downside of diesel is they are more expensive to maintain, cost more when purchased, and some are a bitch to start in cold weather. I've had 7.3 powerstrokes (best diesel engine Ford ever used), a 6.0 powerstroke which was the start of the reason Ford parted ways with navistar an absolute POS out of the box, a cummins, a duramax, and a vw jetta TDI. The Jetta was great 50ish mpg and ran great until my wife filled it up with gas and drove away. The 7.3 powerstrokes did decent but not great in the mpg department, my F350 I had was around 12 mpg with 410 rear end and the F450 did about 10mpg with 488 in the rear. The 6.0 powerstroke F550 was getting a terrible 7 mpg burning up 60 gallons a week when diesel prices were hovering around 5 bucks per gallon. The cummins which I bought brand new in 04 and still own is the best of all them considering fuel economy averaging 18 mixed an 20 on the highway. Then the duramax, best raw power of any of them but only gets 12 mpg.
In a nutshell for ride quality and power I would choose the duramax, for the best engine and fuel economy the cummins by a longshot, and the 7.3 F350 was the best looking truck I ever owned with a great power plant although the ride was so stiff you would shit your kidneys out. The F550 6.0 great looking truck but the $1200 dollars a month for fuel was $100 shy of double my payment. The cummins will be with me for life and my 09 duramax will be my work truck for many more years years to come.