Impressive ratings for GM's new diesel
Article "The Silverado 1500 diesel’s full EPA ratings are 33 mpg on the highway, 23 in the city, 27 combined for rear-drive pickups and 29/23/25 for all-wheel-drive models."
Forum Discussion
Turtle n Peeps wrote:Terryallan wrote:
But amazingly. it is third in towing capacity. Why is that.
In a word; duty cycle. (oh I guess that's 2 words)
When you do things like put electric fans to cool an engine in a pickup that tows you're going to run into things like duty cycle. It does bring up the mileage though! :B
Nailed it! Towing is rarely power limited, but cooling. I invite everyone to read the article on just how hard Jeep engineers worked on the Gladiator's cooling to achieve its tow rating, nothing was touched on the Pentastar (which has a lot less torque than the baby Duramax)
The original 6BT towed about 10 lbs with all of 160hp, and 400 lb-ft of torque. But it had a massive radiator, big clumsy engine driven metal fan, and NO intercooler dumping additional heat load.
