THe gas mileage is better but not enough to counter act all the other costs if enviormentalism is what you want use natural gas its much cheaper and better for the enviroment however the heads on your car will need to be re done after 100 000 km
Diesel engines are heavyer and not really ment for stop and go driving that will build large carbon deposits on the heads. diesel engines have insane torque you can make a diesel engine haul a$$ if you know what to do
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