Part 3: [1] [2] [3] [4] [5] [6] [7] [8] [9]
[Intro] [3/4-Ton 7% Grade] [1-Ton 7% Grade] [Diesel v Gas Comparison 7% Grade]
[3/4-Ton 15% Grade] [1-Ton 15% Grade] [Diesel v Gas Comparison 15% Grade]

[F-450 All Grades] [Summary]

Part 1: Introduction to the 2007 Heavy Duty Shootout
[Intro] [Detailed Truck Specs] [Dodge] [General Motors] [Ford] [Squat Test]

Part 2: Quarter-Mile Drags
[Intro] [3/4-Ton Unloaded] [3/4-Ton Loaded] [1-Ton Unloaded] [1-Ton Loaded] [F-450] [Diesel v Gas Comparison]

Gas Versus Diesel Comparison By Brand - 7% Grade with Trailer

This page is an opportunity to compare the relative performance of the single rear wheel gas pickups against their dual rear wheel diesel counterparts on the 7% grade.

Obviously, not an apples to apples comparison (primarily because of weight and rear axle and rear track differences between the 3/4-ton and 1-tons), but it provides some indication of the scenarios where each type of engine excels. You can see the patterns from manufacturer to manufacturer are almost identical, regardless of the truck / engine / transmission combinations.

Again, as we noted during the level 1/4-miles at Milan and MPG, look at how close the time and speed curves are for the Ford trucks. They were near identical up the 7% grade. In contrast to the Dodge and GM oil burners, the 6.8-liter V10 gas engine was faster moving up the grade than the 6.4-liter V8 diesel.

Dodge:



Ford:



General Motors:



Part 3: [1] [2] [3] [4] [5] [6] [7] [8] [9]