Unless you can get a diesel Cruze for zero or very close to zero cost over a comparable gasoline model, it's a worthless purchase. Even for zero cost it's still questionable. Fuel costs will be higher to the point that the higher fuel economy will not offset the additional purchase price of a gasoline model. That, and every single part to maintain or repair a diesel model is higher cost than the gasoline engine. You can easily achieve 40+ mpg highway with gasoline Cruze vehicles. Buying a diesel gets you about 50 mpg, so it's a 25% increase in fuel economy. But the cost of fuel is higher and then DEF is a cost factor.
In about 16,000 miles of driving I have figured out that a diesel purchase just doesn't make sense when you can get high efficiency with a gasoline model.
Hmmm, I just had a gasoline Cruze rental on a business trip. 169 miles, virtually all highway... 33MPG, calculated from 5 gallons of fuel. I just got 52MPG in my Diesel, calculated, virtually identical driving conditions. That is a pretty massive difference. I could add that the gasoline engine screams higher RPM yet doesn't have the get up an go low end torque of the diesel. Where I live there is minimal cost difference from gasoline to Diesel, some parts of the US diesel is cheaper. As to DEF, it's statistically insignificant. A $7 2.5gallon jug at Walmart will get you well over 6000 miles... That is about a penny every 10 miles, and it's possible to get cheaper DEF at truck stops.
Yes, it's true the Diesel costs more to buy, but I got 2 of mine for $20k, well equipped... A comparable gasoline car with similar options would be about $17-18 k.. over the first 6 years with 12k/year the fuel cost savings cover that and then some, drive 24k per year it's covered in about 3 years. Beyond that the fuel savings cover the possible additional parts costs. This is just math. I should point out that it's typical to get near double the milage before overhaul than a much higher RPM gasoline engine.. that and there have been some difficulty with the gasoline engine and burning pistons, and some have determined that it really is best to use 89 or higher octane fuel to get best performance... All that said, the gasoline engine car is a fine option for some, especially if you look to replace the car before 5 years, and definitely if you drive limited miles. The diesel is an option that can make sense for higher milage, especially highway heavy drivers.
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