GMs new 6.2 di seems to get great mpg
I have read a lot of owners reporting 16-18 average and 20-21 highway out of a 6.2. Any here have a new one?? MPG numbers please.
Forum Discussion
wintersun wrote:
The new GM trucks are 600 lbs. lighter thanks to greater use of aluminum. Fuel is sent to fewer cylinders when the load is light on the engine. The trucks have 8-speed transmission with more overdrive gears and smaller gaps with the lower underdrive gears.
What surprises me is how infrequently the manufacturers of trucks and SUV's go for improving fuel economy. For the past 20 years the horsepower and 0-60 times have been the selling points to buyers. The people who cared about MPG bought a 45 MPG Prius or a 30 MPH Subaru Forester. I took a middle approach and have a 45 MPG Prius and a 15 MPG diesel truck. Guess which one I drive 80% of the time.
I disagree with almost all of your post. The 2014 GM half tons weight about 250 pounds less than a similarly equipped 2013 model. Perhaps you are confusing Ford and GM? The 2015 F-150 crew cab weighs about 700 pounds less than an equivalent 2014 model. Only Ram offers an 8-spd transmission in 2015 models, but GM will have an 8-spd/6.2L "in 2015" which I believe means a 2016 model as the early 2015 pickup and SUVs all have 6-spds.
All vehicle manufacturers have been improving the efficiency of their engines (and transmission). Specific output (hp and torque per liters of displacement) has been improved, but so has fuel efficiency. Better combustion benefits power and efficiency.
